Process for the preparation of alkylidene diesters

Details Process for the preparation of alkylidene diesters Process for the preparation of alkylidene diesters

C - Chemistry, Metallurgy

07

C

260/491.8

C07C 67/38 (2006.01) C07C 51/14 (2006.01) C07C 69/28 (2006.01)

Patent

CA 1283423

A B S T R A C T PROCESS FOR THE PREPARATION OF ALKYLIDENE DIESTERS Process for the preparation of an alkylidene diester by reacting an ethylenically unsaturated compound with carbon monoxide, a carboxylic acid and an aldehyde in the presence of a catalytic system prepared by combining palladium or a palladium compound, at least 5 mol of a phosphine having three aryl groups, per gram atom of palladium, and with an acid with a pK < 2 (at 18 °C in aqueous solution), except hydrohalogenic and carboxylic acids, as promoter.

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