Patent ID: 6838576
Filing Date: 2005-01-04
Classification: C07C

Abstract:
1. A process for preparing functional group-containing olefinic compounds comprising the steps of: (a) reacting (1) at least one alkylidene phosphorane comprising an alkylidene moiety and three other moieties bonded to its phosphorus atom, said alkylidene moiety optionally comprising one or more carbon to carbon double or triple bonds, with (2) at least one carbonyl-containing compound that comprises at least one group that is a leaving group, or that is capable of subsequent conversion to a leaving group, and that optionally comprises one or more isolated carbon to carbon double or triple bonds, to form an olefinic compound that comprises at least one leaving group, said carbonyl-containing compound being selected from the group consisting of ketones and aldehydes; and (b) reacting said olefinic compound with at least one functional group-containing nucleophile to form the corresponding functional group-containing olefinic compound.