Process for the carbonylation of allenically unsaturated...

Details Process for the carbonylation of allenically unsaturated... Process for the carbonylation of allenically unsaturated...

C - Chemistry, Metallurgy

07

C

260/536, 260/482

C07C 51/567 (2006.01) C07C 57/04 (2006.01) C07C 67/38 (2006.01) C07C 69/54 (2006.01)

Patent

CA 1263122

K 604 A B S T R A C T PROCESS FOR THE CARBONYLATION OF ALLENICALLY UNSATURATED COMPOUNDS The process for the carbonylation of an allenically unsaturated compound with CO in the presence of water, an alcohol and/or a carboxylic acid is carried out in the presence of a catalyst formed by combining:- a) a Pd(II) compound, b) ? 15 mol of an organic phosphine per gram atom of Pd(II), and c) a protonic acid having a pK > 1.5 and/or a carboxylic acid having a PKa ? 1.5, both measured at 18 °C in aqueous solutions.

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