ESTUDIOS SOBRE QUINONAS. III. LA REACCION DE LA 2-ACETIL-Y 2-METOXICARBONIL-1,4-BENZOQUINONA CON ALGUNAS ENAMINAS. = ETUDES SUR LES QUINONES. III. REACTION DES ACETYL-2 ET METHOXYCARBONYL-2 BENZOQUINONES-1,4 AVEC QUELQUES ENAMINESVALDERRAMA J; VEGA YJC.1977; AN. QUIM.; ESP.; DA. 1977; VOL. 73; NO 9-10; PP. 1212-1214; ABS. ANGL.; BIBL. 6 REF.Article

STUDIES ON QUINONES. VIII: THE APPLICATION OF MICHAEL ADDUCTS FROM 2-HYDROXY-1,4-NAPHTHOQUINONES FOR THE PREPARATION OF DIHYDRONAPHTHOPYRANDIONES (2)CASSIS R; TAPIA R; VALDERRAMA J et al.1982; J. HETEROCYCL. CHEM.; ISSN 0022-152X; USA; DA. 1982; VOL. 19; NO 2; PP. 381-384; BIBL. 17 REF.Article

A generalized Patel-Teja equation of state for polar and nonpolar fluids and their mixturesVALDERRAMA, J. O.Journal of chemical engineering of Japan. 1990, Vol 23, Num 1, pp 87-91, issn 0021-9592Article

ESTUDIOS SOBRE QUINONAS. IV. SINTESIS DE HIDROXILAPACHOL Y PRODUCTOS RELACIONADOS. = ETUDE SUR LES QUINONES. IV. SYNTHESE DE L'HYDROXYLAPACHOL ET DE COMPOSES APPARENTESCASSIS R; TAPIA R; VALDERRAMA J et al.1977; AN. QUIM.; ESP.; DA. 1977; VOL. 73; NO 12; PP. 1512-1513; ABS. ANGL.; BIBL. 9 REF.Article

ESTUDIOS SOBRE QUINONAS. II. ESTUDIO CINETICO DE LA REACCION DE LA 2-HIDROXI-3-(3-OXOBUTIL)-1,4-NAFTOQUINONA CON PIPERIDINA. = ETUDES SUR LES QUINONES. II. ETUDE CINETIQUE DE LA REACTION DE L'HYDROXY-2 (OXO-3 BUTYL)-3 NAPHTOQUINONE-1,4 AVEC LA PIPERIDINESANTOS J; SCHALSCHA D; VALDERRAMA J et al.1977; AN. QUIM.; ESP.; DA. 1977; VOL. 73; NO 6; PP. 855-857; ABS. ANGL.; BIBL. 7 REF.Article

Experimental determination of parameters for a partial segregation modelVALDERRAMA, J. O.Chemical engineering communications (Print). 1983, Vol 23, Num 1-3, pp 151-160, issn 0098-6445Article

ESTUDIOS SOBRE QUINONAS. V. REACTIVIDAD DE INTERMEDIARIOS ENAMINICOS EN LA REACCION DE LA 2-HIDROXI-3-(3-OXOBUTIL) 1,4-NAFTOQUINONA CON AMINAS SECUNDARIAS. = ETUDE SUR LES QUINONES. V. REACTIVITE DES ENAMINES INTERMEDIAIRES DANS LA REACTION DE L'HYDROXY-2 (OXO-3 BUTYL)-3 NAPHTOQUINONE-1,4 AVEC LES AMINES SECONDAIRESSANTOS J; SCHALSCHA D; VALDERRAMA J et al.1978; AN. QUIM.; ESP; DA. 1978; VOL. 74; NO 5; PP. 827-829; ABS. ENG; BIBL. 6 REF.Article

STUDIES ON QUINONES. VII. SYNTHESIS OF SOME BENZO (B) THIOPHENE-4,7-DIONESRUIZ VM; TAPIA R; VALDERRAMA J et al.1981; J. HETEROCYCL. CHEM.; ISSN 0022-152X; USA; DA. 1981; VOL. 18; NO 6; PP. 1161-1164; BIBL. 14 REF.Article

European Spine Society. MeetingVALDERRAMA, J. A.Journal of bone and joint surgery. British volume. 1995, Vol 77, pp 14-25, issn 0301-620X, SUP1Conference Proceedings

STUDIES ON QUINONES. VI: ACID-CATALIZED REARRANGEMENTS IN SOME 4-ACETYL-2,3-DIHYDROBENZO (B) FURANSBARRIOS L; RUIZ VM; TAPIA R et al.1980; CHEM. LETTERS; JPN; DA. 1980; NO 2; PP. 187-190; BIBL. 17 REF.Article

LA REACCION DEL O-ETILDITIOCARBONATO DE S-ETOXICARBONILO CON AMINAS ALIFATICAS = REACTION DU O-ETHYL DITHIOCARBONATE DE S-ETHOXYCARBONYLE AVEC DES AMINES ALIPHATIQUESHERRERA M; RUIZ VM; TAPIA R et al.1980; AN. QUIM., C; ESP; DA. 1980; VOL. 76; NO 2; PP. 183-186; ABS. ENG; BIBL. 14 REF.Article

Studies on quinones. XXVII: Diels-Alder reaction of 8,8-dimethylnaphthalene-1,4,5(8H)-trioneVALDERRAMA, J. A; ARAYA-MATURANA, R; ZULOAGA, F et al.Journal of the Chemical Society. Perkin transactions. I. 1993, Num 10, pp 1103-1107, issn 0300-922XArticle

Acid-catalysed rearrangement of the Diels-Alder adducts of activated quinonesFARINA, F; PAREDES, M. C; VALDERRAMA, J. A et al.Journal of the Chemical Society. Perkin transactions. I. 1990, Num 8, pp 2345-2346, issn 0300-922X, 2 p.Article

On the linear dependence of the pressure and the thermodynamic properties on the perturbation parameter using the WCA theoryVALDERRAMA, J. O; CUADROS, F; MULERO, A et al.Chemical physics letters. 1990, Vol 166, Num 4, pp 437-444, issn 0009-2614, 8 p.Article

ANTITHROMBIN III AND FACTOR VIII IN PATIENTS WITH NEOPLASMS.LOSITO R; BEAUDRY P; CARO VALDERRAMA J et al.1977; AMER. J. CLIN. PATHOL.; U.S.A.; DA. 1977; VOL. 68; NO 2; PP. 258-262; BIBL. 40 REF.Article

Studies on quinones. XXVI: The reaction of methacrolein N,N-dimethylhydrazone with activated benzoquinonesVALDERRAMA, J. A; GONZALEZ, M. F.Heterocycles (Sendai). 1993, Vol 36, Num 7, pp 1553-1560, issn 0385-5414Article

Studies on quinones. XXVIII: Novel rearrangements of Diels-Alder adducts of naphtho- and anthradiquinonesFARINA, F; PAREDES, M. C; VALDERRAMA, J. A et al.Tetrahedron (Oxford. Print). 1993, Vol 49, Num 46, issn 0040-4020, X, 10715-10724 [11 p.]Article

Kinetic studies on the rearrangement of Diels-Alder adducts of activated benzoquinones with (E)-1-trimethylsiloxybuta-1,3-dieneSANTOS, J. G; ROBERT, P; VALDERRAMA, J. A et al.Perkin transactions. 2. 1993, Num 10, pp 1841-1845, issn 0300-9580Article

Generalized Rackett-type correlations to predict the density of saturated liquids and petroleum fractionsVALDERRAMA, J. O; ABU-SHARKH, B. F.Fluid phase equilibria. 1989, Vol 51, pp 87-100, issn 0378-3812Article

Dienone―phenol rearrangement mechanism of 8,8-dimethyl- and 6,8,8-trimethyl-naphthalene-1,4,5(8H)-triones in acetic anhydride solutionGOYCOOLEA, C; SANTOS, J. G; VALDERRAMA, J. A et al.Perkin transactions. 2. 1988, Num 7, pp 1135-1137, issn 0300-9580Article

Studies on quinones. XIII: Synthesis and reactivity in acid medium of cyclic O,N-ketals derived from acylbenzoquinones and enaminesCASSIS, R; TAPIA, R; VALDERRAMA, J. A et al.Journal of heterocyclic chemistry. 1984, Vol 21, Num 3, pp 869-872, issn 0022-152XArticle

On the choice of a third (and fourth) generalizing parameter for equations of stateVALDERRAMA, J. O; CISTERNAS, L. A.Chemical engineering science. 1987, Vol 42, Num 12, pp 2957-2961, issn 0009-2509Article

Interaction parameter for hydrogen-containing mixtures in the Peng-Robinson equation of stateVALDERRAMA, J. O; MOLINA, E. A.Fluid phase equilibria. 1986, Vol 31, Num 2, pp 209-219, issn 0378-3812Article

Studies on quinones. XIV: Oxidative demethylation of hydroquinones dimethylethers with nitric acid- impregnated manganese dioxideERRAZURIZ, B; TAPIA, R; VALDERRAMA, J. A et al.Tetrahedron letters. 1985, Vol 26, Num 7, pp 819-822, issn 0040-4039Article

Critical properties, normal boiling temperatures, and acentric factors of fifty ionic liquidsVALDERRAMA, J. O; ROBLES, P. A.Industrial & engineering chemistry research. 2007, Vol 46, Num 4, pp 1338-1344, issn 0888-5885, 7 p.Article