Patent ID: 7199252
Filing Date: 2007-04-03
Classification: C07B,C07C,C07D

Abstract:
1. Process for the preparation of a compound having the formula: which comprises contacting a first olefin selected from 4-(alkenyl)ethylenecarbonates having the formula: and at least one olefin having the formula H 2 C═CHR 2 (V) or R 2 HC═CHR 2 (VI) or a cycloalkene (VII) in the presence of an olefin metathesis catalyst under olefin metathesis conditions of pressure and temperature wherein R R cycloalkene (VII) is selected from the group consisting of substituted or unsubstituted cyclobutenes, cyclopentenes, cyclopentadienes, cyclohexenes, cycloheptenes, and cyclooctenes.