Patent ID: 6867307
Filing Date: 2005-03-15
Classification: C07B,C07C,C07D

Abstract:
1. A process for the preparation of a compound of general formula (I) wherein A is a C 1 to C 20 hydrocarbon, Y and Z independently represent a C 1 to C 20 hydrocarbon which may contain an oxygenated functional group, B represents OR 1 or NHR 1 where R 1 is hydrogen or a C 1 to C 6 hydrocarbon, said process comprising reacting, in the presence of a Lewis acid catalyst, a compound of the general formula (II) wherein Y and Z are as herein before defined, with a compound of the general formula (III) or a compound of general formula (IV) wherein A is as hereinbefore defined, B′ represents O or NR 1 where R 1 is as hereinbefore defined, and R is hydrogen or a C 1 to C 6 hydrocarbon.