Patent ID: 6407293
Filing Date: 2002-06-18
Classification: C07C

Abstract:
A process for producing 3-1-menthoxypropane-1,2-diol, which comprises:adding 1-menthol to a 1,2-epoxy-3-halogenopropane represented by the following general formula (I): (wherein X represents a halogen atom), in an organic solvent in the presence of a Lewis acid to produce a 1-halogeno-3-1-menthoxypropan-2-ol represented by the following general formula (II): (wherein X represents a halogen atom),then, epoxidating it with a base in the presence of a phase transfer catalyst to produce a 1,2-epoxy-3-1-menthoxypropane represented by the following chemical formula (III): and further hydrolyzing it to produce 3-1-menthoxypropane-1,2-diol represented by the following chemical formula (IV)