BETA-GAMMA UNSATURATED ESTERS AND PROCESS OF PRODUCTION OF BETA-GAMMA UNSATURATED ESTERS.

摘要

A process for the preparation of &bgr;,γ-unsaturated-γ, γ-disubstituted esters 1 with high E/Z- and &bgr;,γ/α,&bgr;-ratios, Formula (1) by reacting at a temperature of between about 130 and 170 degrees centigrade the conjugated malonate Formula (3) with, a group I, II or III metal halide or an organic cation/halide anion pair, an inorganic proton source and a polar solvent.