High yield carbonylation of halo-hydrocarbons

Details High yield carbonylation of halo-hydrocarbons High yield carbonylation of halo-hydrocarbons

C - Chemistry, Metallurgy

07

C

260/478.7

C07C 67/36 (2006.01) C07C 51/10 (2006.01) C07C 69/614 (2006.01)

Patent

CA 1258870

HIGH YIELD CARBONYLATION OF HALO-HYDROCARBONS ABSTRACT OF THE INVENTION High yields of aromatic, aromatic acetic and olefinic acids, esters, amides and the like are derived from a pro- cess wherein a halo-hydrocarbon is carbonylated in the pres- ence of a palladium catalyst, a hindered amine base and phosphine in excess. The hindered amine base can comprise C3-C10 branched alkyls, cyclic compounds, or mixtures of the above. The preferred amine is N,N-diisopropylethyl amine. The preferred catalyst is PdC12(PPN3)2 with the excess phos- phine generally supplied by a compound of the formula PR1R2R3 where R1,R2 and R3 are preferably phenyl.

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