Patent ID: 6992199
Filing Date: 2006-01-31
Classification: B01J,C07C,Y02P

Abstract:
1. A process for sulphonylating a hydroxylated organic compound, comprising the step of reacting said compound with a sulphonylating agent in the presence of an effective quantity of a Lewis acid, wherein the sulphonylating agent is a compound comprising at least one —SO 2 R 4 sulphonyl group wherein R 4 represents a hydrocarbon group containing 1 to 20 carbon atoms, and wherein the hydroxylated organic compound has at least one electron-attracting group that is sufficiently close to the hydroxyl group to deactivate it; the electron-attracting group optionally being present on the linear or cyclic, saturated or unsaturated hydrocarbon chain carrying the hydroxyl group or present on an aromatic carbocycle or heterocycle carried by a carbon atom carrying or close to that carrying the hydroxyl group.