Process for the carbonylation of an ethylenically...

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B01J 31/24 (2006.01) C07C 45/49 (2006.01) C07C 51/14 (2006.01) C07C 67/38 (2006.01) C07F 9/6564 (2006.01) C07F 9/6568 (2006.01) B01J 31/28 (2006.01)

Patent

CA 2476736

Process for the carbonylation of an ethylenically unsaturated compound with carbon monoxide and a coreactant. The carbonylation reaction is carried out in the presence of a novel catalyst comprising: a) a source of a group VIII metal; b) a bidentate diphosphine of formula (I), wherein R1~ represents a bivalent radical that together with the phosphorus atom to which it is attached is an optionally substituted 2-phospha-tricyclo[3.3.1.1{3,7}]-decyl group or a derivative thereof in which one or more of the carbon atoms are replaced by heteroatoms ("2-PA" group); wherein R2~ and R3~ independently represent univalent radicals of up to 20 atoms or jointly form a bivalent radical of up to 20 atoms; and wherein A1~ and A2~ independently represent optionally substituted alkylene groups and R represents an optionally substituted aromatic group; and c) a source of anions.

La présente invention concerne la carbonylation par monoxyde de carbone et d'un coréactif. La carbonylation s'effectue en présence d'un catalyseur de l'invention comprenant: a) une source de métal du groupe VIII, b) une diphosphine bidentée représentée par la formule (I), et c) une source d'anions. Dans la formule (I), R1 représente un radical bivalent qui, associé à l'atome de phosphore auquel il est attaché, est un groupe 2-phospha-tricyclo[3.3.1.1{3,7}]-décyle éventuellement substitué ou l'un de ses dérivés dans lequel l'un au moins des atomes de carbone est remplacé par des hétéroatomes (groupe "2-PA"). R2 et R3, pris indépendamment, sont des radicaux monovalents d'un maximum de 20 atomes, mais pris ensemble forment un radical bivalent d'un maximum de 20 atomes. Enfin, A1 et A2 pris indépendamment, représentent des groupes alkylène éventuellement substitués, R représentant un groupe aromatique éventuellement substitué.

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