The Sánchez-Delgado Research Group at Brooklyn College


Complete List of Publications

132.       A. Sánchez, M. Fang, A. Ahmed, and R. A. Sánchez-Delgado*, “Hydrogenation of arenes, N-heteroaromatic compounds, and alkenes catalyzed by rhodium nanoparticles supported on magnesium oxide”, 2013 (submitted).

131.       M. Fang and R. A. Sánchez-Delgado,* "Ruthenium nanoparticles supported on magnesium oxide: a versatile and recyclable catalyst for hydrogenation of mono-/poly-cyclic arenes, N-heteroaromatics and S-heteroaromatics" 2013 (submitted).

130.      C. S. K. Rajapakse, M. Lisai, C. Deregnaucourt, V. Sinou, C. Latour, J. Schrével, and Roberto A. Sánchez-Delgado* “New N-aryl-4-aminoquinolines display high in vitro activity against chloroquine-sensitive and chloroquine-resistant Plasmodium falciparum and low toxicity to normal mammalian cells” 2013 (submitted)

129.      E. Robles-Escajeda, A. Martínez, A. Varela-Ramirez, R. A. Sánchez-Delgado, and R. J. Aguilera,* “Analysis of the cytotoxic effects of ruthenium-ketoconazole and ruthenium-clotrimazole complexes on cancer cells” Cell Biol. Toxicol. 2013, 29, 431-443.

128.      J. G. Estrada and R. A. Sánchez-Delgado,* “Spectroscopic Study of the Interactions of Ruthenium-Ketoconazole Complexes of Known Antiparasitic Activity with Human Serum Albumin and Apotransferrin”, J. Mex. Chem. Soc., 2013, 57, 169-174.

127.      R. A. Sánchez-Delgado* y V. Medialdea, “La química inorgánica a la búsqueda del “Magic Bullet” en contra de enfermedades desatendidas; el caso de Latinoamérica” en A. Ponte Sucre y L. G. Rodríguez (Eds.) “Las Tecnologías de Información y Comunicación en el combate de las enfermedades desatendidas en América Latina y el Caribe: Aportes desde la investigación en ciencias de la salud”. Fundación Telefónica-Ariel, Barcelona, España 2013, in press.

126.      E. Iniguez, A. Sánchez, M. A. Vasquez, A. Martínez, J. Olivas, A. Sattler, R. A. Sánchez-Delgado*, and R. A. Maldonado*, “The Metal-Drug Synergy: New RutheniumII Complexes of Ketoconazole are Highly Active against Leishmania major and Trypanosoma cruzi and Non-toxic to Human or Murine Normal Cells” J. Biol. Inorg. Chem. 2013, 18, 779-790.

125.      R. Rahi, M. Fang, A. Ahmed and R. A. Sánchez-Delgado*, “Hydrogenation of quinolines, alkenes, and biodiesel by palladium nanoparticles supported on magnesium oxide.” Dalton Trans. 2012, 41, 14490-14497.

124.      A. Martínez, T. Carreon, E. Iniguez, A. Anzellotti, A. Sánchez, M. Tyan, A. Sattler, L. Herrera, R. A. Maldonado* and R. A. Sánchez-Delgado*, “Searching for new chemotherapies for tropical diseases: Ruthenium-clotrimazole complexes display high in vitro activity against Leishmania major and Trypanosoma cruzi and low toxicity toward normal mammalian cells.” J, Med. Chem. 2012, 55, 3867-3877.

123.      L. Glans, A. Ehnbom, C. de Kock, A. Martínez, J. Estrada, P. J. Smith, M. Haukka, R. A. Sánchez-Delgado* and E. Nordlander*,“Ruthenium(II) arene complexes with chelating chloroquine analogue ligands: Synthesis, characterization and in vitro antimalarial activity.” Dalton Trans. 2012, 41, 2764-2773. PMC3303165.

122.      B. Demoro, C. Sarniguet, R. Sánchez-Delgado, M. Rossi, D. Liebowitz, F. Caruso, C. Olea-Azar, V. Moreno, A. Medeiros, M. A. Comini, L. Otero,* D. Gambino,* New organoruthenium complexes with bioactive thiosemicarbazones as co-ligands: potential anti-trypanosomal agents.” Dalton Trans. 2012, 41, 1534-1543. PMC3299570

121.      M. Navarro,* W. Castro, A. R, Higuera-Padilla, A. Sierraalta, M. J. Abad, P. Taylor and R. A. Sánchez-Delgado, “Synthesis, characterization and biological activity of trans-platinum (II) complexes with chloroquine”, J. Inorg. Biochem. 2011, 105, 1684-1691. PMC3294264.

120.      M. Fang, N. Machalaba and R A. Sánchez-Delgado,* “Hydrogenation of arenes and N-heteroaromatic compounds over ruthenium nanoparticles on poly(4-vinylpyridine): a versatile catalyst operating by a substrate-dependent dual site mechanism” Dalton Trans. 2011, 40, 10621–10632.

119.      M. Navarro,* W. Castro, A. Martínez and R. A. Sánchez-Delgado, “The Mechanism of Antimalarial Action of [Au(PPh3)(CQ)]PF6”: structural effects and increased drug lipophilicity enhance heme aggregation inhibition at lipid/water interfaces.” J. Inorg. Biochem. 2011, 105, 276-282. PMC 3038622.

118.      A. Martínez, J. Suárez, T. Shand, R. S. Magliozzo and R. A. Sánchez-Delgado*, “Interactions of Arene-Ru(II)-Chloroquine Complexes of Known Antimalarial and Antitumor Activity with Human Serum Albumin (HSA) and Transferrin”, J. Inorg. Biochem. 2011, 105, 39-45. PMC 2990986

117.      A. Martínez, C. S. K. Rajapakse, A. Varela-Ramirez, C. Lema, R. Aguilera and R. A. Sánchez-Delgado*, “Arene-Ru(II)-Chloroquine Complexes Interact With DNA, Induce Apoptosis Against Human Lymphoid Cell Lines and Are Less Toxic to Normal Mammalian Cells than Chloroquine”, J. Inorg. Biochem. 2010, 104, 967-977. PMC 2910123.

116.      A. Martínez, C. S. K. Rajapakse, D. Jalloh, C. Dautriche and R. A. Sánchez-Delgado*, The antimalarial activity of Ru–chloroquine complexes against resistant Plasmodium falciparum is related to lipophilicity, basicity, and heme aggregation inhibition ability near water/n-octanol interfaces, J. Biol. Inorg. Chem. 2009, 14, 863-871.

115.      S. Jiménez, J. A. López, M. A. Ciriano, C. Tejel,* A. Martínez, and R. A. Sánchez-Delgado, “Selective Hydrogenation of Cinnamaldehyde and Other a,b-Unsaturated Substrates Catalyzed by Rhodium and Ruthenium Complexes” Organometallics, 2009, 28, 3193-3202.

114.      C. S. K. Rajapakse, A. Martínez, B. Naoulou, A. A. Jarzecki, L. Suárez, C. Deregnaucourt, V. Sinou, J. Schrével, E. Musi, G. Ambrosini, G. K. Schwartz and R. A. Sánchez-Delgado*,“Synthesis, Characterization and in vitro Antimalarial and Antitumor Activity of New Ruthenium(II) Complexes of Chloroquine”,Inorg. Chem. 2009, 48, 1122-1131. PMC 2673146

113.      V. R. Landaeta,* F. López-Linares, R. Sánchez-Delgado, C. Bianchini, F. Zanobini and M.       Peruzzini,* “Synthesis and Characterization of New Rhodium and Iridium Complexes with Trianisylphosphine, PAn3, and Evaluation of their Catalytic Behavior in the Homogeneous Hydrogenation of Cinnamaldehyde”, J. Mol. Catal. (A) 2009, 301, 1-10; Featured as Editor’s Choice Paper.

112.      A. Martínez, Ch. S. K. Rajapakse, B. Naoulou, Y. Kopkalli, L. Davenport and R. A. Sánchez-Delgado.* “The Mechanism of antimalarial action of the Ru(II)-chloroquine complex [RuCl2(CQ)]2”, J. Biol. Inorg. Chem. 2008, 13, 703-712. PMC 2409194.

111. R. A. Sánchez-Delgado,* N. Machalaba and N. Ng-a-qui. “Hydrogenation of Quinoline by Ruthenium Nanoparticles immobilized on poly(4-vinylpyridine)”. Catal Commun. 2007, 8, 2115-2118. PMC 2390998.

110.      M. Rosales,* A. González, Y. Guerrero, I. Pacheco and R. A. Sánchez-Delgado. “Kinetics and mechanisms of homogeneous catalytic reactions. Part 6. Hydroformylation of 1-hexene by use of Rh(acac)(CO)2/dppe [dppe = 1,2-bis(diphenylphosphino)ethane] as the precatalyst”. J. Mol. Catal. A: Chem. 2007, 270, 241-249.

109.      M. Rosales,* J. A. Durán, A. González, I. Pacheco and R. A. Sánchez-Delgado. “Kinetics and mechanisms of homogeneous catalytic reactions. Part 7. Hydroformylation of 1-hexene catalyzed by cationic complexes of rhodium and iridium containing PPh3”. J. Mol. Catal. A: Chem. 2007, 270, 250-256.

108.      R. A. Sánchez-Delgado. “Homogeneous Hydrogenation by Defined Metal Clusters”. Invited Chapter in “Handbook of Homogenoeus Hydrogenation”, K. Elsevier and J. G. de Vries, Eds. Wiley-VCH: Weinheim (2007). Vol. 1, Ch. 8, pp. 199-215.

107.      R. A. Sánchez-Delgado. “Hydrodesulfurization and Hydrodenitrogenation”. Invited Chapter in Comprehensive Organometallic Chemistry III, R. H. Crabtree and D. M. P. Mingos, Eds. Elsevier: Oxford (2006). ISBN: 008044590X. Vol. 1, Ch. 1.27, pp. 759-800.

106.      F. López-Linares, J. Urdaneta, V. Sánchez, and R. A. Sánchez-Delgado. “Hydrogenation of a,b-unsaturated carbonyl substrates by use of [Ir(COD)(PPh3)2]PF6 in 1-butyl-3-methylimidazolium hexafluorophosphate”. Ciencia 2006, 14, 26-30.

105.      V. Landaeta, B. K. Muñoz, M. Peruzzini, V. Herrera, C. Bianchini, and R. A. Sánchez-Delgado. “Imine hydrogenation by tribenzylphosphine rhodium and iridium complexes”. Organometallics 2006, 25, 403-409.

104.      V, Landaeta, M. Peruzzini, V. Herrera, C. Bianchini, R. A. Sánchez-Delgado, A. E.  Goeta, and F. Zanobini. “Synthesis, characterization and reactivity of tribenzylphosphine rhodium and iridium complexes”. J. Organomet. Chem. 2006, 691, 1039-1050.

103.    P. J. Baricelli, K. Segovia, E.  Lujano, M. Modroño-Alonso, F. López-Linares, and R. A. Sánchez-Delgado. “Synthesis and characterization of [HRu(CO)(CH3CN)(TPPTS)3]BF4. Catalytic properties in the aqueous-biphasic hydroformylation of olefins”. J. Mol. Catal.  A: Chem. 2006, 252, 70-75.

102.     M. Vietes, P. Buccino, L. Otero, M. González, O. E. Piro, R. Sánchez-Delgado, C. M. R. Sant’Anna, E. J. Barreiro, H. Cerecetto, and D. Gambino. “Chemoselective hydrolysis of the imine moiety in salicylaldehyde semicarbazone promoted by ruthenium. Inorg. Chim. Acta 2005, 358, 3065-3074.

101.     P. J. Baricelli, F. López-Linares, A. Bruss, R. Santos, E.  Lujano and R. A. Sánchez-Delgado. Biphasic hydroformylation of olefins by the new binuclear water-soluble rhodium complex [Rh(m-Pz)(CO)(TPPTS)]2. J. Mol. Catal.  A: Chem. 2005, 239, 130-137.

100.     M. Rosales, A. González, B.  González, C. Moratinos, H. Pérez, J. Urdaneta and R. A. Sánchez-Delgado. Hydroformylation of alkenes with paraformaldehyde catalyzed by rhodium-phosphine complexes. J. Organometal. Chem., 2005, 690, 3095-3098.

99.     P. J. Baricelli, E. Lujano, M. Modroño, A. C. Marrero, Y. M. García, A. Fuentes and R. A. Sánchez-Delgado, Rhodium-catalyzed hydroformylation of C6 alkenes and alkene mixtures. A comparative study in homogeneous and aqueous biphasic media using PPh3, TPPTS and TPPMS ligands. J. Organometal. Chem., 2004, 689, 3782-3792.

98.     M. Rosales, T. González, R. Atencio and R. A. Sánchez-Delgado, Synthesis and reactivity of iridium complexes with pyridine and piperidine ligands: Models for hydrodenitrogenation Dalton Transactions, 2004, 2952-2956.

97.      M. Navarro, F. Vásquez, R. A. Sánchez-Delgado, H. Pérez, V. Sinou, J. Schrevel, Toward a Novel Metal-Based Chemotherapy against Tropical Diseases. 8. Synthesis and in vitro antimalarial activity of new gold-chloroquine complexes. J. Med. Chem., 2004, 47, 5204-5209.

96.       M. Strasberg-Rieber, A. Anzellotti, R. A. Sánchez-Delgado and M. Rieber, “Apoptosis induced by Ruthenium(II) ketoconazole irrespective of p53 status is enhanced in non-susceptible carcinoma by monoclonal antibody to EGF receptor.” Int. J. Cancer, 2004, 112, 376-384.

95.        E. Cabrera, H. Cerecetto, M. González, D. Gambino, P. Noelia, L. Otero, B. Parajón-Costa, A. Anzellotti, R. A. Sánchez-Delgado, A. Azqueta, A. López de Cérain and A. Monge, “Ruthenium(II) nitrofurylsemicarbazone complexes: new DNA binding agents.” Eur. J. Med. Chem., 2004, 39, 377-382.

94.        P. Baricelli, M. Rodríguez, E. Lujano, A. Fuentes and R. A. Sánchez-Delgado, “Synthesis and characterization of Ru(H)2(CO)2(TPPMS)2 and applications to the hydroformylation of alkenes” Appl. Catal. (A): General 2004, 263, 187-191.

93.      R. A. Sánchez-Delgado and A. Anzellotti, “Metal Complexes as chemotherapeutic agents against tropical diseases: trypanosomiasis, malaria and leishmaniasis”. Minirev. Med. Chem., 2004, 4, 23-30.

92.       R. A. Sánchez-Delgado, A. Anzellotti and L. Suárez, “Metal complexes as chemotherapeutic agents against tropical diseases: malaria, leishmaniasis and trypanosomiasis”. Invited Chapter in Metal Ions in Biological Systems, Eds. H. Siegel and A. Siegel, Marcel Dekker: New York, 2004, Vol. 41(“Metal Ions and their Complexes in Medication”) 379-419.

91.        L. Otero, P. Noblia, D. Gambino, H. Cerecetto, M. González, R. Sánchez-Delgado, E. E. Castellano and O. E. Piro, “New Rheniun(V) Nitrofuryl Semicarbazone Complexes. Crystal Structure of [ReOCl2(PPh3)(3-(5-Nitrofuryl)acrolein semicarbazone)]. Z. Anorg. Allg. Chem. 2003, 629, 1033-1038.

90.        R. A. Sánchez-Delgado, “Hydrodesulfurization by Homogeneous Catalysts” Invited Chapter in “Encyclopedia of Catalysis”, I. T. Horvath, Ed., John Wiley & Sons, New York, 2003.

89.       M. Alías, P. J. Daff, M. Paneque, M. L. Poveda,* E. Carmona,* P. J. Pérez, V. Salazar, E. Gutierrez-Puebla, M. Angeles Monge, C. Ruiz-Valero, Y. Alvarado, R. Atencio and R. A. Sánchez-Delgado, “C-C Bond forming reactions of Ir(III)-alkenyls and nitriles or aldehydes. Generation of reactive hydride- and alkyl-alkylidene compounds and observation of a reversible 1,2-H shift in stable hydride-alkylidene Ir(III) complexes.” Chem. Eur. J. 2002, 8, 5132-5146.

88.       M. Esther Morilla, G. Morfes, M. C. Nicasio, T. R. Belderrain, M. Mar Díaz-Requejo, A. Tiripicchio, R. Sánchez-Delgado* and P. J. Pérez*, “Intramolecular dealkylation of chelating diamines with Ru(II) complexes.” Chem. Commun. 2002, 1848-1849.

87.        Navarro, M., Cisneros-Fajardo, E., Lehmann, T., Sánchez-Delgado, R. A., Atencio, R., Silva, P., Lira, R., Urbina, J. A., Toward a Novel Metal-Based Chemotherapy against Tropical Diseases. 6. Synthesis and Characterization of New Cu(II) and Au(I) Clotrimazole and Ketoconazole Complexes and Evaluation of their Activity against Trypanosoma cruzi. Inorg. Chem. 2001, 40, 6879-6884

86.       M. Navarro, T. Lehmann, E. J. Cisneros, A. Fuentes, R. A. Sánchez-Delgado*, P. Silva and J. A. Urbina. “Toward a Novel Metal Based Chemotherapy Against Tropical Diseases. 4. Synthesis and Characterization of New Ru(II) and Ru(III)  Clotrimazole and Ketoconazole Complexes and Evaluation of their Activity Against Trypanosoma cruzi.” Polyhedron  2000, 19, 2319-2325

85.     R. A. Sánchez-Delgado and M. Rosales, “Kinetic Studies as a Tool for the Elucidation of the Mechanisms of Metal Complex-Catalyzed Homogeneous Hydrogenation Reactions”. Coordination Chemistry Reviews 2000, 196, 249-280.

84.        R. A. Sánchez-Delgado, “Complejos Metálicos en Catálisis y en Química Medicinal” Revista de la Sociedad Venezolana de Química 1999, 22, 7-13.

83.       R. A. Sánchez-Delgado, “Algunos Comentarios Acerca de la Publicación y la Evaluación de la Investigación en Ciencias Experimentales. ¿Son Estos Aplicables a las Matemáticas?” Boletin de la Asociación Matemática Venezolana 1999, VI, 47-53.

82.      C. Bianchini, A. Meli, S. Moneti, W. Oberhauser, F. Vizza, V. Herrera, A. Fuentes, and R. A. Sánchez-Delgado, “Mimicking the HDS Activity of Ruthenium-Based Catalysts 2: The Hydrogenation of Benzo[b]thiophene to 2,3-Dihydrobenzo[b]thiophene.” J. Am. Chem. Soc. 1999, 121, 7071-7080.

81.        E. Paez, A. Andriollo, F. Lopez-Linares, R. E. Galiasso, J. A. Revete, R. A. Sanchez-Delgado, and A. Fuentes, “The reduction of nitrogen- and sulfur-containing heteroaromatic compounds in a biphasic medium using a Group VIII hydrosoluble organometallic complex.” Am. Chem. Soc. Div. Fuel. Chem. Symp. Prepr. 1998, 43, 563-567.

80.       R. A. Sánchez-Delgado,* M. Navarro, K. Lazardi, R. Atencio, M. Capparelli, F. Vargas, J. A. Urbina,* A. Bouillez, A. F. Noels and D. Masi, “Toward a Novel Metal Based Chemotherapy Against Tropical Diseases. 4. Synthesis and Characterization of New Metal Clotrimazole Complexes and Evaluation of their Activity Against Trypanosoma cruzi.” Inorg. Chimica Acta 1998, 275-276, 528-540.

79.        M. Navarro y R. A. Sánchez Delgado, “Complejos de Coordinación como Posibles Agentes Quimioterapéuticos en Medicina Tropical” Rev. Soc. Ven. Quim. 1997, 20, 10-14.

78.        V. Herrera, A. Fuentes, M. Rosales, R. A. Sánchez-Delgado*, C. Bianchini, A. Meli and F. Vizza, "Homogeneous Hydrogenation of Benzothiophene by Use of Rhodium and Iridium Complexes as the Catalyst Precursors: Kinetic and Mechanistic Aspects, Organometallics 1997, 16, 2465-2471.

77.      M. Navarro, H. Pérez and R. A. Sánchez-Delgado*, "Toward a Novel Metal-Based Chemotherapy against Tropical Diseases. 3. Synthesis and Antimalarial Activity in vitro and in vivo of the New Gold-Chloroquine Complex [Au(PPh3)(CQ)]PF6." J. Med. Chem. 1997, 40, 1937-1939

76.       R. A. Sánchez-Delgado*, M. Medina, F. López-Linares and A. Fuentes, “The Chemistry and Catalytic Properties of Ruthenium and Osmium Complexes. Part 7. Regioselective Hydrogenation of Cinnamaldehyde (3-phenyl-2-propenal) Catalyzed by Ru and Os Triphenylphosphine Complexes in Homogeneous Solution and by Meta-sulfonatophenyl-diphenylphosphine (TPPMS) and Tris-meta-sulfonato-phenylphosphine (TPPTS) Derivatives in an Aqueous Biphasic System.” J. Mol. Catal. 1997, 116, 167-177.

75.     Bianchini, J. A. Casares, A Meli, V. Sernau, F. Vizza and R. A. Sánchez-Delgado, “Efficient Rhodium Catalysts for the Hydrogenolysis of Thiophenic Molecules in Homogeneous Phase.” Polyhedron, 1997, 16, 3099-3114.

74.      Bianchini, A. Meli and R. A. Sánchez-Delgado, “Catalytic Hydrogenolysis of Thiophenic Molecules to Thiols by Soluble Metal Complexes”, en Transition Metal Sulfur Chemistry: Biological and Industrial Significance (E. Stiefel and K. Matsumoto, Eds.), 1996, ACS Symp. Ser. Vol. 653, Ch. 10, American Chemical Society, Washington D. C.

73.        R. A. Sánchez-Delgado*, M. Navarro, H. Pérez* and J. A. Urbina, "Toward a Novel Metal-Based Chemotherapy against Tropical Diseases. 2. Synthesis and Antimalarial Activity in vitro and in vivo of New Ruthenium- and Rhodium-Chloroquine Complexes." J. Med. Chem. 1996, 39, 1095-1099.

72.        Y. Alvarado, P. J. Daff, P. J. Pérez, M. L. Poveda, R. Sánchez-Delgado, and E. Carmona, "Iridapyrrole Complexes via 1,3-Dipolar Addition of Iridium-Alkenyls to Acetonitrile" Organometallics, 1996, 15, 2192-2194.

71.        R. A. Sánchez-Delgado*, R. Gomes da Rosa, and E. Ocando-Mavarez, "The Mechanism of the Mild Rhodium-catalyzed Carbonylation of N-alkylallylamines to -Butyrolactams under CO/H2." J. Mol. Catal. 1996, 108, 125-129.

70.    Argüello, A. Bolaños, F. Cuenu, M. Navarro, V. Herrera, A. Fuentes, and R. A. Sánchez-Delgado*, "Synthesis, Characterisation and some Catalytic Properties of Ru(II) Complexes Ru(PPh3)2Cl2(L)2 (L = 4-tBu-py, 4-vinyl-py, 4-CN-py, 4-Me-py, 3-Me-py, L2 = 4,4' bipy]. Kinetics of Cyclohexene Hydrogenation Catalysed by Ru(PPh3)2Cl2(4-tBu-py)2." Polyhedron, 1996, 15, 909-915.

69.       Bianchini*, J. A. Casares, M. V. Jiménez, A. Meli, S. Moneti, F. Vizza, V. Herrera, and R. A. Sánchez-Delgado, "Metal Activation of Dibenzo[b,d]thiophene. Reactivity of the C-S Insertion Product [MeC(CH2PPh2)3]IrH(h2-C,S-C12H8S)" Organometallics, 1995, 14, 4850-4857.

68.        Bianchini,* V. Herrera, M. V. Jiménez, F. Laschi, A. Meli, R. A. Sánchez-Delgado, F. Vizza, and P. Zanello, "Redox-Induced Conversion Pathways in Rhodium and Iridium Complexes Containing C-S Bond Cleaved Benzo[b]thiopene." Organometallics 1995, 14, 4390-4401.

67.      Bianchini,* A. Meli, V. Herrera, M. V. Jiménez, R. A. Sánchez-Delgado and Francesco Vizza, "The Catalytic Transformation of Benzo[b]thiophene to 2-Ethylthiophenol by a Soluble Rhodium Complex: The Reaction Mechanism Involves Ring Openening Prior to Hydrogenation." J. Am. Chem. Soc. 1995, 117, 8567-8575.

66.       Bacchi, C. Bianchini,* V. Herrera, M. V. Jiménez, C. Mealli, A. Meli, S. Moneti, M. Peruzzini, R. A. Sánchez-Delgado and F. Vizza, "Thiophene C-S Bond Cleavage by Rhodium and Iridium. An Unprecedented Bridging Mode of the Open C4H4S Fragment." J. Chem. Soc. Chem. Commun. 1995, 921-922.

65.      M. Rosales,* Y. Alvarado, M. Boves, R. Rubio, H. Soscún and R. A. Sánchez-Delgado, "Kinetics and Mechanisms of Homogeneous Catalytic Reactions. Part 3. Regioselective Reduction of Quinoline Catalysed by [RuH(CO)(NCMe)2(PPh3)2]BF4." Trans. Met. Chem. 1995, 20, 246-251.

64.      Bianchini,* P. Frediani, V. Herrera, M. V. Jiménez, A. Meli, L. Rincón, R. A. Sánchez-Delgado and F. Vizza, "Homogeneous Reactions of Thiophenes with Transition Metals: a Modelling Approach for Elucidation of HDS Mechanism and and Effective Method for the Synthesis of Unusual Organosulfur Compounds." J. Am. Chem. Soc. 1995, 117, 4333-4346.

63.      L. Rincón,* J. Terra, D. Guenzburger and R. A. Sánchez-Delgado, "Theoretical Study of the Pyramidal Geometry Around the Sulfur in the S-Bound Mode of Coordination of Thiophene to the [Cp(CO)2Fe]+ Fragment", Organometallics  1995, 14, 1292-1296.

62.        Bianchini,* V. Jimenez, A. Meli, F. Vizza, V. Herrera and R. A. Sánchez Delgado*, "HDS Model Systems. Opening, Hydrogenation and Hydrodesulfurization of dibenzothiophene (DBT) at Iridium. First Case of Catalytic HDS of DBT in Homogeneous Phase", Organometallics, 1995, 14, 2342-2352.

61.        R. A. Sánchez-Delgado,* M. Rosales, M. A. Esteruelas and L. A. Oro, "Homogeneous Catalysis by Osmium Complexes. A review", J. Mol. Catal., 1995, 96, 231-243

60.        Bianchini,* A. Meli, M. Peruzzini, F. Vizza, S. Moneti, V. Herrera and R. A. Sánchez Delgado*, "HDS Model Systems. Coordination, Opening and Hydrogenation of Benzo[b]thiophene at Iridium", J. Am. Chem. Soc., 1994, 116, 4370-4381

59.        Bianchini,* A. Meli, M. Peruzzini, F. Vizza, V. Herrera and R. A. Sanchez-Delgado*, "HDS Model Systems. 2,3-Dihydrothiophene as an Intermediate in the Homogeneous Hydrogenation of Thiophene to Tetrahydrothiophene at Iridium", Organometallics, 1994, 13, 721-730.

58.        R. A. Sánchez-Delgado*, V. Herrera, L. Rincón, A. Andriollo and G. Martín, "Molecular Analogues of Surface Species. 3. The Mechanism of the Regioselective Hydrogenation of Benzothiophene by Use of [Rh(COD)(PPh3)2]PF6 as the Catalyst Precursor. Kinetic and Theoretical Study", Organometallics 1994, 13, 553-561

57.       R. A. Sánchez-Delgado, "Breaking C-S Bonds with Transition Metal Complexes. A Review of Molecular Approaches to the Study of the Mechanisms of the Hydrodesulfurization Reaction", J.Mol. Catal. 1994, 86, 287-307

56.        R. A. Sanchez-Delgado and M. Rosales, "Homogeneous Hydrogenation Reactions Catalyzed by Ruthenium and Osmium Complexes", Trends in Inorganic Chemistry 1993, 3, 479-496.

55.     R. A. Sanchez-Delgado,* D. Rondón, A. Andriollo, V. Herrera, G. Martín, and B. Chaudret, "Kinetics and Mechanism of the Regioselective Hydrogenation of Quinoline Using [Rh(COD)(PPh3)2]PF6 as the Catalyst Precursor", Organometallics 1993, 12, 4291-4296.

54.      Bianchini,* A. Meli, M. Peruzzini, F. Vizza, P. Frediani, V. Herrera and R. A. Sanchez-Delgado*, "HDS Model Systems. Homogeneous and Heterogeneous (Solid-Gas) Hydrogenation of Benzothiophene at Iridium", J. Am. Chem. Soc., 1993, 115, 7505-7506.

53.       R. A. Sánchez-Delgado*, K. Lazardi, L. Rincón, J. A. Urbina,* A. J. Hubert and A. N. Noels, "Towards a  Novel Metal-based Chemotherapy Against Tropical Diseases. 1. Enhancement of the Efficacy of Clotrimazole Against Trypanosoma cruzi by Complexation to Ruthenium in RuCl2(clotrimazole)2", J. Med. Chem., 1993, 36, 2041-2043.

52.      R. Sánchez-Delgado*, V. Herrera, C. Bianchini*, D. Masi and C. Mealli, "Simultaneous Coordination of Hydrides and h1-S Thiophenes Made Possible at Iridium", Inorg. Chem., 1993, 32, 3766-3770.

51.        R. Sánchez-Delgado, "A Kinetic and Theoretical Investigation of the Mechanism of the Homogeneous Hydrogenation of Benzothiophene Catalyzed by [Rh(COD)(PPh3)2]PF6", Advances in Catalyst Design, M. Graziani and C. N. R. Rao (Eds.), World Scientific Press, 1993, Vol. 2, 95-110.

50.        Bianchini*, A. Meli, M. Peruzzini, F. Vizza, P. Frediani, V. Herrera and R. Sánchez-Delgado*, "Opening, Desulfurization, and Hydrogenation of Thiophene at Iridium. An Experimental Study in Homogeneous Phase", J. Am. Chem. Soc. 1993, 115, 2731-2742

49.        M. Turizo Arango y R. Sánchez-Delgado, "Hidrogenación homogénea selectiva de alquinos catalizada por el complejo de osmio OsHCl(CO)(PPh3)3", Química Actualidad y Futuro (Medellín), 1992, 2, 57-61

48.        M. Rosales*, A. González, Y. Alvarado, R. Rubio, A. Andriollo and R. A. Sánchez-Delgado, "Kinetics and mechanisms of homogeneous catalytic reactions. 1. Hydrogenation of benzaldehyde catalyzed by [RuH(CO)(NCMe)2(PPh3)2]BF4, J. Mol. Catal., 1992, 75, 1-13

47.       R. A. Sánchez-Delgado*, M. Rosales and A. Andriollo, "The chemistry and catalytic properties of ruthenium and osmium complexes. 6. Synthesis and reactivity of  [RuH(CO)(NCCH3)2(PPh3)2]BF4, including the catalytic hydroformylation of hex-1-ene", Inorg. Chem., 1991, 30, 1170-1173

46.      R. A. Sánchez-Delgado, Molecular analogues of surface species in HDS catalysis: metal complexes of thiophene and related ligands and the mechanism of hydrogenation of benzothiophene, Advances in Catalyst Design, M. Graziani and C. N. R. Rao (Eds.), World Scientific Press, 1991, 214-231

45.        R. A. Sánchez-Delgado*, W. Y. Lee, S. R. Choi and M. J. Jun, "The chemistry and catalytic properties of ruthenium and osmium complexes. 5. Synthesis of new compounds containing arsine ligands and catalytic activity in the homogeneous hydrogenation of aldehydes", Trans. Met. Chem., 1991, 16, 241-244

44.        R. A. Sánchez-Delgado, "Análogos moleculares de especies superficiales en HDS y HDN. Modelos organometálicos de reacciones heterogéneas", Anales XII Simposio Iberoamericano de Catalisis, 1990, 3, 742-753

43.        Chaudret*, F. Jalón, M. Pérez-Manrique, F. Lahoz, F. J. Plou and R. A. Sánchez-Delgado, "A new and general method for the preparation of novel π-derivatives of ruthenium [(C5Me5)Ru(arene)]. X-ray crystal structure of [(C5Me5)Ru2Cl2(py)2]PF6", New J. Chem., 1990, 14, 331-338

42.      Andriollo, M. A. Esteruelas, V. Meyer, L. A. Oro*, R. A. Sánchez-Delgado, E. Sola, C. Valero and H. Werner*, "Kinetic and mechanistic investigation of the sequential hydrogenation of phenylacetylene catalyzed by OsHCl(CO)(PR3)2", J. Am. Chem. Soc., 1989, 111, 7431-7437

41.        F. Ruette*, N. Valencia and R. A. Sánchez-Delgado*, "Molecular analogues of surface species. 2. A theoretical studie of molybdenum carbonyl thiophene complexes: organometallic models for the chemisorption of thiophene", J. Am. Chem. Soc., 1989, 111, 46-54.

40.        R. A. Sánchez-Delgado* and E. González, "Selective hydrogenation of benzothiophene and quinoline catalyzed by Ru, Os, Rh and Ir complexes", Polyhedron, 1989, 8, 1431-1436

39.      P. Dufour, L. Huang, A. Choplin, R. A. Sánchez-Delgado, A. Theolier and J. M. Basset*, "Surface organometallic chemistry: formation of the grafted dianionic cluster [Rh6(CO)15]2- upon adsorption of Rh6(CO)16 on a partially hydroxylated magnesia", J. Organomet. Chem., 1988, 354, 243-248

38.        N. Homs, A. Choplin, P. Ramírez de la Piscina, L. Huang, E. Garbowski, R. A. Sánchez-Delgado and J. M. Basset*, "Surface organometallic chemistry: the disproportionation of Co2(CO)8 on a MgO surface", Inorg. Chem., 1988, 27, 4030-4033

37.      F. Noels, A. Demonceau, E. Carlier, A. J. Hubert*, R. L. Márquez-Silva and R. A. Sánchez-Delgado, "Competitive cyclopropanation and cross-metathesis reactions of alkenes catalysed by diruthenium tetrakis carboxylates", J. Chem. Soc. Chem. Commun., 1988, 783-784

36.     J. Puga*, A. Arce, R. A. Sánchez-Delgado, A. Andriollo, D. Braga* and F. Grepioni "Synthesis, reactivity and spectroscopic studies on some tetranuclear osmium clusters. Structural characterization of [HOs4(CO)12{m3-N(CO)CH3}][MPPh3] (M = Au, Cu) and [PPN][H2Os4(CO)12(I)]", J. Chem. Soc. Dalton Trans., 1988, 913-923

35.        Choplin, B. Besson, L. D'Ornelas, R. A. Sánchez-Delgado and J.M. Basset*, "Surface organometallic chemistry: Hydrogenation of ethylene with Os3(CO)10(H)(OSi-) and reactivity of the molecular analogue Os3(CO)10(H)(OPh)", J. Am. Chem. Soc., 1988, 110, 2783-2787

34.        R. A. Sánchez-Delgado*, A. Andriollo, J. Puga and G. Martín, "Homogeneous catalysis by metal clusters. 2. Hydrogenation of styrene by tetranuclear osmium clusters", Inorg. Chem. 1987, 26, 1867-1870

33.        L. D'Ornelas, A. Choplin, J.M Basset*, J. Puga and R. A. Sánchez-Delgado*, "Surface organometallic chemistry: the relative reactivity of carbonyl, hydride and halide ligands in H4Os4(CO)12 and H3Os4(CO)12(I) toward magnesia", Inorg. Chem., 1986, 25, 4315-4316

32.    R. A. Sánchez-Delgado*, R. L. Márquez-Silva, J. Puga, A. Tiripicchio* and M. Tiripicchio-Camellini, "Organometallic models of the hydrodesulphurisation reaction. Synthesis of [(h-thiophene)M(PPh3)2]PF6  (M = Rh, Ir) and X-ray structure of the Rh derivative, the first example of a fully characterised π-thiophene complex of an HDS-active metal", J. Organomet. Chem. 1986, 316, C35-C37

31.        J. Puga*, R. A. Sánchez-Delgado, J. Ascanio and D. Braga*, "Conversion of a nitrile ligand into an amido group on a cluster surface: X-ray characterization of [HOs4(CO)12{m3-N(CO)CH3}][MPPh3] (M = Au, Cu)" J. Chem. Soc. Chem. Commun., 1986, 1631-1633

30.        R. A. Sánchez-Delgado, "Estudios recientes sobre la síntesis y propiedades catalíticas de complejos de metales del grupo VIII", Actas X Simposio Iberoamericano de Catalisis, 1986, 1, 91-106

29.       R. A. Sánchez-Delgado* and B. A. Oramas, "The chemistry and catalytic properties of ruthenium and osmium complexes. 4. A comparative study of the reduction of nitro compounds under hydrogen, syngas and water gas", J. Mol. Catal., 1986, 36, 283-291

28.        R. A. Sánchez-Delgado*, N. Valencia, R. L. Márquez-Silva, A. Andriollo and M. Medina, "The chemistry and catalytic properties of ruthenium and osmium complexes. 3. The development of highly active systems for the homogeneous hydrogenation of aldehydes and ketones", Inorg. Chem., 1986, 24, 1106-1111

27.        R. A. Sánchez-Delgado*, U. Thewalt*, N. Valencia, R. L. Márquez-Silva, A. Andriollo, J. Puga, H. Schöllhorn, H. P. Klein and B. Fontal, "The chemistry and catalytic properties of ruthenium and osmium complexes. 2. Synthesis and characterization of new mononuclear and dinuclear complexes with H-, PR3 and RCO2- ligands. X-ray structures of OsBr(CO)(OCOCH3)(PPh3)2, RuCl(CO)(OCOCH3)(PPh3)2 and [PPh2Me][Ru2Cl2(m-Cl)3(CO)2(PPh3)4]", Inorg. Chem., 1986, 24, 1097-1106

26.        R. A. Sánchez-Delgado*, A. Andriollo, E. González, N. Valencia, V. León and J. Espidel, "The chemistry and catalytic properties of ruthenium and osmium complexes. Part 1. Homogeneous catalysis of organic reactions by bromocarbonylhydridotris(triphenylphosphine) osmium(II)", J. Chem. Soc. Dalton Trans., 1985, 1859-1864

25.        J. Puga*, R. A. Sánchez-Delgado, A. Andriollo and D. Braga*, "A reversible ligand supported metal framework rearrangement. X-ray structure analysis of [PPN][H2Os4(CO)12(I)]",Organometallics, 1985, 4 , 2064-2066

24.        J. Puga*, R. A. Sánchez-Delgado and D. Braga*, "The interaction of H3Os4(CO)12(I) with [PPN][NO2]. Synthesis and chemical characterization of [PPN][H2Os4(CO)12(I)] and H3Os4(CO)11(NO). Structure determination of the new nitrosyl cluster H3Os4(CO)11(NO)", Inorg. Chem, 1985, 23, 3971-3974

23.        R. A. Sánchez-Delgado*, A. Andriollo, J. Ascanio, E. González, G. Martín, J. Puga et M. Rosales, "Catalyse homogène et chimie fine: l'utilization de complexes mononucleaires et polynucleaires de l'osmium", Recueil des Travaux II Colloque Franco-Vénézuélien de Catalyse (Paris), 1985, A1-A13

22.        R. A. Sánchez-Delgado, "La química de los complejos de rutenio y osmio. Aspectos sintéticos, estructurales y catalíticos", Actas 1er Coloquio de Quimica Inorgánica de la Sociedad Chilena de Quimica, 1985, 45-54

21.        R. A. Sánchez-Delgado*, A. Andriollo, M. Medina y N. Valencia, "Hidrogenación catalítica homogénea del enlace C=O de aldehídos y cetonas utilizando complejos de rutenio y osmio", Actas 1er Coloquio Franco-Venezolano de Catalisis(1983), 1984, 192-199

20.        R. Alvarez, E. Carmona*, M. L. Poveda and R. A. Sánchez-Delgado,* "Carbon dioxide chemistry. The synthesis and properties of trans-Mo(CO2)2(PMe3)4, the first stable bis(carbon dioxide) adduct of a  transition metal", J. Am. Chem. Soc., 1984, 106, 2731-2732

19.        R. A. Sánchez-Delgado*, J. Puga and M. Rosales, "Homogeneous catalysis by metal clusters 1. Hydrogenation of cyclohexene by use of trinuclear and tetranuclear osmium complexes", J. Mol. Catal. 1984, 24, 221-225.

18.        R. A. Sánchez-Delgado*, A. Andriollo and N. Valencia, "Homogeneous hydrogenation of a,b-unsaturated aldehydes catalyzed by ruthenium and osmium complexes", J. Mol. Catal. 1984, 24, 217-220.

17.        R. A. Sánchez-Delgado*, N. Valencia and A. Oramas, "Homogeneous hydrogenation of cyclohexene by ruthenium carboxylate complexes. Further evidence for a general mechanism", Acta Cient. Venez. 1984, 35, 228-231

16.        E. Carmona*, K. Döppert, J. M. Marín, M. L. Poveda and R. A. Sánchez-Delgado*, "Seven coordinate halo and dithiocarbamate trimethylphosphine derivatives of molybdenum(II) and tungsten(II)", Inorg. Chem., 1984, 23, 530-534

15.        R. A. Sánchez-Delgado*, A. Andriollo and N. Valencia, "Bromocarbonylhydridotris (triphenylphosphine)osmium(II): a versatile catalyst for homogeneous organic reactions", J. Chem. Soc. Chem. Commun., 1983, 444-445

14.        R. Blackborow, R. Daroda y R. A. Sánchez-Delgado, "Rutas homogéneas para la producción de combustibles y productos químicos a partir del gas de síntesis utilizando catalizadores derivados de metales de transición", Acta Cient. Venez.. 1982, 33, 131-138.

13.        R. A. Sánchez-Delgado*, A. Andriollo, K. Döppert, C. Ramírez and N. Valencia, "Homogeneus catalytic hydrogenation of aldehydes by use of ruthenium carboxylate complexes", Acta Cient. Venez., 1982, 33, 23-25

12.        H. P. Klein, U. Thewal*, K. Döppert* und R. A. Sánchez-Delgado, "Darstellung, Struktur und Eigenschaften des Dreikernigen Titanocomplexes Cp2TiCl-O-TiCpCl-OTiClCp2.CHCl3.", J. Organomet. Chem., 1982, 236, 189-195.

11.        K. Döppert*, R. A. Sánchez-Delgado, H. P. Klein und U. Thewalt*, "Darstellung, Struktur und Eigenschaften von Bis(cyclopentadienyl)oxalatotitan(IV) und Bis (cyclopentadienyl)dimaleinatotitan(IV), J. Organomet. Chem. 1982, 233, 205-213

10.        R. A. Sánchez-Delgado, "Hidroformilación homogénea de olefinas catalizada por complejos de rutenio", Anais do 6º Simposio Iberoamericano de Catalise (1978), 1981, 4, 1297-1327

9.         R. A. Sánchez-Delgado*, A. Andriollo, O. L. de Ochoa, T. Suárez and N. Valencia, "Homogeneous hydrogenation of aldehydes to alcohols with ruthenium triphenylphosphine complexes", J. Organomet. Chem. , 1981, 209, 77-83

8.         R. A. Sánchez-Delgado*, I. Durán, J. Monfort y E. Rodríguez, "A comparative study of the isomerization and hydrogenation of hex-1-ene with soluble and silica-supported ruthenium catalysts", J. Mol. Catal., 1981, 11, 193-203

7.         K. Döppert* und R. A. Sánchez-Delgado, "Zur Bildung von Monocyclopentadienyl titan(IV)aquocomplexen", J. Organomet. Chem. , 1980, 210, C9-C10

6.       R. A. Sánchez-Delgado*, I. Durán, J. Monfort y E. Rodríguez, "Catálisis homogénea vs. heterogénea: isomerización e hidrogenación del hex-1-eno catalizadas por dodecacarboniltrirutenio en solución y soportado sobre sílica", Anales del 7º Simposio Iberoamericano de Catálisis, 1980, 149-158

5.         R. A. Sánchez-Delgado* and O. L. de Ochoa, "Homogeneous hydrogenation of ketones to alcohols with ruthenium complex catalysts", J. Organomet. Chem. 1980, 202, 427-430

4.         R. A. Sánchez-Delgado, "Catálisis homogénea: principios y aplicaciones", Acta Cient. Venez., 1979, 30, 517-524

3.         R. A. Sánchez-Delgado* and O. L. de Ochoa, "Homogeneous hydrogenation of aldehydes and ketones by use of ruthenium triphenylphosphine complexes", J. Mol. Catal. 1979, 6, 303-305

2.    R. A. Sánchez-Delgado and G. Wilkinson*, "Interactions of diphenylacetylene and other acetylenes with hydridonitrosyltris(triphenylphosphine)ruthenium, carbonylhydridotris (triphenylphosphine)-rhodium and -iridium", J. Chem. Soc. Dalton Trans. 1977, 804-809

1.         R. A. Sánchez-Delgado, J. S. Bradley and G. Wilkinson*, "Further studies on the homogeneous hydroformylation of alkenes by use of ruthenium complex catalysts", J. Chem. Soc. Dalton Trans. 1976, 399-404.

 


Patents

 

1.         D. E. Paez, A. Andriollo, R. A. Sánchez-Delgado, N. Valencia, R. E. Galiasso and F. Lopez-Linares, “Process for the selective hydrogenation of heteroaromatic sulfur-containing and nitrogen-containing compounds”, U.S. Patent 5,958,223 to INTEVEP, S.A. (28 Sept. 1999).

2.         D. E. Paez, A. Andriollo, R. A. Sánchez-Delgado, N. Valencia, F. Lopez-Linares and R. Galiasso, "A Catalyst System for the Selective Hydrogenation of Heteroaromatic Sulfur-Containing and Nitrogen-Containing Compounds, and Process for Preparing and Using Same", U.S. Patent 5,981,421 to INTEVEP, S.A. (Nov. 1999).

3.         D. E. Paez, A. Andriollo, R. A. Sánchez-Delgado, N. Valencia, F. Lopez-Linares and R. Galiasso, "A Catalyst System for the Selective Hydrogenation of Heteroaromatic Sulfur-Containing and Nitrogen-Containing Compounds, and Process for Preparing and Using Same", U.S. Patent 5,753,584 to INTEVEP, S.A. (19 May 1998).

4.         D. E. Paez, A. Andriollo, R. A. Sánchez-Delgado, N. Valencia, F. Lopez-Linares and R. Galiasso, "Sistema Catalítico para la Hidrogenación Selectiva de Compuestos Heteroaromáticos Conteniendo Azufre y Nitrógeno, y el Proceso para su Preparación y Uso", Solicitud de Patente Venezolana 96-1630 (24 Sept. 1996).

 

Books

 

1.      R. A. Sánchez-Delgado, “Organometallic Models of the Hydrodesulfurization and Hydrodenitrogenation Reactions”, Catalysis by Metal complexes Series, No. 24, Kluwer Academic Publishers, Dordrecht, The Netherlands (2002).

 

Chapters in textbooks


1.      R. A. Sánchez-Delgado, “Oxidaciones en fase homogénea” in Fundamentos y Aplicaciones de la Catálisis Homogénea, L. A. Oro y E. Sola, Eds., CYTED (2000) pp. 53-64.

2.      R. A. Sánchez-Delgado, “Modelos organometálicos de la hidrodesulfuración” in Fundamentos y Aplicaciones de la Catálisis Homogénea, L. A. Oro y E. Sola, Eds., CYTED (2000) pp. 173-180.