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

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. 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

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

Modification of the Soave equation of state suggested by using computer simulationCUADROS, F; MULERO, A; VALDERRAMA, J. O et al.Chemical engineering science. 1993, Vol 48, Num 3, pp 513-519, issn 0009-2509Article

A simple and accurate model for the residence time distribution in liquid trickle flow through packed bedsVALDERRAMA, J. O; YANEZ, M. A.Chemical engineering journal. 1986, Vol 33, Num 2, pp 109-111, issn 0300-9467Article

Synthesis of naphtho[2,3-b]pyranoquinones and its aza-analogues from a useful benzopyranoquinone intermediateTAPIA, R; VALDERRAMA, J. A; QUINTANAR, C et al.Heterocycles (Sendai). 1994, Vol 38, Num 8, pp 1797-1804, issn 0385-5414Article

Studies on quinones. 24¹. Rearrangement of diels-alder adducts of activated quinones under acidic conditionsFARIÑA, F; PAREDES, M. C; VALDERRAMA, J. A et al.Tetrahedron (Oxford. Print). 1992, Vol 48, Num 22, pp 4629-4640, issn 0040-4020Article

Studies on quinones. XII: Cycloketalization of Michael adducts from hydroxyquinonesCASSIS, R; TAPIA, R; VALDERRAMA, J. A et al.Journal of heterocyclic chemistry. 1984, Vol 21, Num 3, pp 865-868, issn 0022-152XArticle

Generalization of a polar-fluid Soave-Redlich-Kwong equation of stateVALDERRAMA, J. O; DE LA PUENTE, H; IBRAHIM, A. A et al.Fluid phase equilibria. 1994, Vol 93, pp 377-383, issn 0378-3812Article

Temperature-dependent interaction parameters in cubic equations of state for nitrogen-containing mixturesVALDERRAMA, J. O; IBRAHM, A. A; CISTERNAS, L. A et al.Fluid phase equilibria. 1990, Vol 59, Num 2, pp 195-205, issn 0378-3812, 11 p.Article

Application of a new cubic equation of state to hydrogen sulfide mixturesVALDERRAMA, J. O; OBAID-UR-REHMAN, S; CISTERNAS, L. A et al.Chemical engineering science. 1987, Vol 42, Num 12, pp 2935-2940, issn 0009-2509Article

The evaluation of Fourier-Bessel transforms in statistical mechanicsVALDERRAMA, J. O; MUNOZ, G. A; SANDLER, S. I et al.Chemical physics letters. 1986, Vol 125, Num 4, pp 412-418, issn 0009-2614Article

Dienone-phenol rearrangement of naphthalenetriones. A route to 10-acetoxy-5,6,7,8-tetrahydrophenanthrene-1,4-dionesCASSIS, R; SCHOLZ, M; TAPIA, R et al.Journal of the Chemical Society. Perkin transactions. I. 1987, Num 12, pp 2855-2859, issn 0300-922XArticle

On the rearrangement mechanism of cyclic O,N-acetals derived from acylquinones and enaminesCASTRO, C. G; SANTOS, J. G; VALDERRAMA, J. A et al.Perkin transactions. 2. 1986, Num 7, pp 917-922, issn 0300-9580Article