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Machine translation
1. (WO1980000250) PROCESS FOR THE CARBONATION OF DIOLEFINS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000250    International Application No.:    PCT/US1979/000519
Publication Date: 21.02.1980 International Filing Date: 18.07.1979
IPC:
C07C 51/09 (2006.01), C07C 51/36 (2006.01)
Applicants:
Inventors:
Priority Data:
926132 19.07.1978 US
Title (EN) PROCESS FOR THE CARBONATION OF DIOLEFINS
(FR) PROCEDE DE CARBONATATION DE DIOLEFINES
Abstract: front page image
(EN)Conjugated diolefins (e.g., 1, 3-butadiene) are carbonylated by the palladium-catalyzed addition of carbon monoxide and an alcohol of the formula ROH (e, g., benzyl alcohol) whereby polycarboxylic esters are formed in which the pair of double bonds of the conjugated diolefin has been transformed into a moiety having the formula: (FORMULA) In the process, the olefin, carbon monoxide, and alcohol are reacted in the presence of a palladium (II) salt a copper (II) salt and a base, at certain concentrations and at a pressure and temperature sufficient to effect the carbonylation. The resulting unsaturated diester can be hydrolyzed and hydrogenated or vice versa to obtain the corresponding linear diacid (e.g., adipic acid).
(FR)Des diolefines conjuguees (par exemple 1, 3 butadiene) sont carbonylees par addition d"oxyde de carbone catalysee au palladium et un alcool de formule ROH (p. ex., l"alcool benzylique) ce qui provoque la formation d"esters polycarboxyliques dans lesquels la paire de liaisons doubles de ladite olefine conjuguee a ete transformee en une moitie ayant la formule: (FORMULE) Dans le procede, l"olefine, l"oxyde de carbone, et l"alcool reagissent en presence d"un sel de palladium (II), un sel de cuivre (II), et une base, avec certaines concentrations et a une pression et une temperature suffisantes pour effectuer la carbonylation. Ledit ester non sature resultant peut etre hydrolyse et hydrogene ou vice-versa pour obtenir ledit acide lineaire correspondant (par exemple l"acide adipique).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)