METHOD FOR SYNTHESIZING 3,4,5-TRIMETHOXY-BENZALDEHYDE

摘要

PURPOSE: To efficiently produce 3,4,5-trimethoxybenzaldehyde by mixing and agitating solns. to partially oxidize the methyl group of 3,4,5-trimethoxytoluene. ;CONSTITUTION: An aq. soln. contg. a preoxidized mediator and a soln. of 3,4,5- trimethoxytoluene in org. solvent are mixed and agitated. Consequently, the methyl group of 3,4,5-trimethoxy-toluene is partially oxidized, the preoxidized mediator is converted to a cerium(IV) compd. or a manganese(III) compd., and 3,4,5-trimethoxybenzaldehyde is efficiently produced in this way with high selectivity.;COPYRIGHT: (C)1993,JPO&Japio