C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/52 (2006.01) C07C 51/14 (2006.01) C07C 51/56 (2006.01) C07C 57/03 (2006.01) C07C 67/38 (2006.01) C07C 69/618 (2006.01)
Patent
CA 2158444
A process for the carbonylation of acetylenically unsaturated compounds in the presence of a nucleophilic compound having one or more removable hydrogen atoms and a catalyst system based on (a) a source of platinum, (b) a bisphosphine of the general formula (I): R1R2PRPR3R4 wherein each of R1, R2, R3 and R4 independently represents a hydrocarbyl group, which may be unsubstituted or substituted with one or more substituents selected from the group consisting of halogen atoms, cyano, alkoxy, acyl, alkylamino and dialkylamino groups, and R represents a bivalent bridging groups containing 2 to 5 atoms in the bridge, and (c) a source of anions being the conjugated base of an acid having a pKa of less than 4.
Drent Eit
Kragtwijk Eric
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Shell Internationale Research Maatschappij B.v.
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