Process for removing an allylic group from allylic esters,...

Details Process for removing an allylic group from allylic esters,... Process for removing an allylic group from allylic esters,...

C - Chemistry, Metallurgy

07

D

260/100, 260/110

C07D 487/04 (2006.01) C07C 29/09 (2006.01) C07D 499/00 (2006.01) C07D 499/08 (2006.01) C07D 499/88 (2006.01) C07D 501/04 (2006.01)

Patent

CA 1144155

A B S T R A C T A novel process for the removal of an allylic group in an allylic ester or of an allylic-oxycarbonyl group in an allylic carbonate or carbamate is disclosed allowing very mild reaction conditions. The process is effected by reac- ting a solution of the allylic ester, carbonate or carba- mate in an organic, aprotic solvent in the presence of a catalytic amount of an organic-soluble palladium complex having a coordinating phosphline ligand with a carboxylic acid having from five to eighteen carbon atoms or an alkali metal salt thereof or with sodium cyanoborohydride or sodium borohydride.

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