A PROCESS FOR THE PREPARATION OF N-(PHOSPHONOMETHYL) GLYCINE AND AN OXIDATION CATALYST

摘要

Abstract:This invention is directed to an improved process for the preparation of N-(phosphonomethyl)glycine (i.e., "glyphosate"), a salt of N-(phosphonomethyl)glycine, or an ester of N- (phosph~nomethyl)glycine. The process comprises combining an N- substituted N-(phosphonomethyl) glycine reactant with oxygen in the presence of a noble metal catalyst. The N-substituted N- (phosphonomethyl) glycine reactant has formula (V):