Patent ID: 6995287
Filing Date: 2006-02-07
Classification: C07C

Abstract:
1. A process comprising reacting an alcohol-sulfone compound represented by the formula: with a reducing agent and a halogenating agent in the presence of a solvent that does not appreciably react with the halogenating agent and in the presence of an amide compound present in an amount of less than 1 part amide per part of alcohol sulfone to form a halosulfone, wherein the amide compound is represented by the following formula (II): wherein R, R′, and R″ groups are branched, unbranched or cyclic alkyl groups or substituted or unsubstituted aryl groups; and then, without isolating the halosulfone, converting the halosulfone into a vinylsulfone by contact with a base selected from the alkali metal carbonates, bicarbonates, formates, acetates, and propionates in the presence of a solvent and water.