Upgrading of extra-heavy crude oil by direct use of methane in the presence of water: deuterium-labelled experiments and mechanistic considerations C Ovalles, A Hamana, I Rojas, RA Bolívar Fuel 74 (8), 1162-1168, 1995 | 56 | 1995 |
Synthesis of oxetanes by photoaddition of carbonyl compounds to pyrrole derivatives. RA Rivas, C. and Bolívar J. Heterocyclic Chem. 13 (5), 1037–1040, 1976 | 39 | 1976 |
Synthesis of oxetanes by photoaddition of carbonyl compounds to 2,5-dimethylthiophene С Rivas, RA Bolivar Journal of Heterocyclic Chemistry 10 (6), 967-971, 1973 | 30 | 1973 |
Process for treating heavy crude oil C Ovalles, A Hamana, R Bolivar, A Morales US Patent 5,269,909, 1993 | 22 | 1993 |
Photoaddition of carbonyl compounds to five-membered ring heterocycles C Rivas, RA Bolivar, M Cucarella Journal of Heterocyclic Chemistry 19 (3), 529-535, 1982 | 20 | 1982 |
Petróleo versus energías alternas: dilema futuro R Bolívar, J Mostany, MC García Interciencia 31 (10), 10-12, 2006 | 17* | 2006 |
Synthesis of an oxetane by photoaddition of benzophenone to a pyrrole derivative C Rivas, RA BOLIVAR, M VELEZ, SE FLORES, CUCARELL. M ACTA CIENTIFICA VENEZOLANA 22 (5), 145-&, 1971 | 16 | 1971 |
Novel ethoxylated surfactants from low-value refinery feedstocks C Ovalles, R Bolivar, E Cotte, W Aular, J Carrasquel, E Lujano Fuel 80 (4), 575-582, 2001 | 15 | 2001 |
Application of the selective 13C{1H} nuclear Overhauser effect to structure elucidation of photoadducts derived from maleic anhydrides and thiophene V Leon, RA Bolivar, ML Tasayco, R Gonzalez, C Rivas Organic magnetic resonance 21 (8), 470-473, 1983 | 14 | 1983 |
Effective pay zone isolation of steam injection wells A Blanco, A Colina, W Rodriguez, R Bolivar SPE Latin America and Caribbean Petroleum Engineering Conference, SPE-53689-MS, 1999 | 13 | 1999 |
Quencher effect of thiophene and its monomethyl derivatives on photo-reduction and photocycloaddition reactions of ketones RA Bolivar, C Rivas Journal of Photochemistry 19 (1), 95-99, 1982 | 11 | 1982 |
Direct structure determination of the self‐condensation product of 1‐phenylpentane‐2,4‐dione using T1 and NOE measurements from 13C NMR spectroscopy V León, J Espidel, RA Bolivar Organic magnetic resonance 21 (12), 766-769, 1983 | 10 | 1983 |
Quenching effect of five-membered ring heterocycles on the photoreduction and photocycloaddition reactions of benzophenone: II RA Bolivar, R Machado, L Montero, F Vargas, C Rivas Journal of Photochemistry 22 (1), 91-95, 1983 | 10 | 1983 |
Quenching effect of thiophene and methylmaleic anhydrides on the photoreduction of benzophenone: a mechanistic study of their photosensitized cycloaddition RA Bolivar, R González, R Machado, C Rivas, ML Tasayco Journal of photochemistry 32 (3), 363-368, 1986 | 9 | 1986 |
United States Patent n.4,772,308, September 20, 1988. Anti-caking compos RA Zurimendi, Jon and Bolívar C. US Patent 4,772,308, 1986 | 8* | 1986 |
Quencher effect of thiophene and its derivatives on the photoreduction of carbonyl compounds RA Bolivar, C Rivas Journal of Photochemistry 17 (1), 91-91, 1981 | 8 | 1981 |
Decomposition studies of photoaddition products derived from five-membered heterocyclics and maleic anhydride and maleimide derivatives by DSC, TG and MS RA Bolivar, E Cotte, C Perez, C Rivas Thermochimica Acta 45 (2), 125-131, 1981 | 6 | 1981 |
Photocycloaddition von 2-Benzoylthiophen an Methylmaleinsäureanhydride C Rivas, RA Bolivar, R Gonzalez, R Machado, F Vargas Monatshefte für Chemie/Chemical Monthly 127, 529-536, 1996 | 5 | 1996 |
Decomposition studies of oxetanes derived from carbonyl compounds and five-membered heterocyclics by differential scanning calorimetry RA Bolívar, C Rivas Thermochimica Acta 12 (4), 353-358, 1975 | 5 | 1975 |
Effects of sour gases on oil well cements/Efectos de gases agrios sobre cementos petroleros/Efeitos de gases acidos sobre cimentos petroliferos RA Bolivar, ME Campos, C Ramirez Interciencia 33 (9), 672-680, 2008 | 3 | 2008 |