By oxidation of N- replacement N- (phosphonomethyl) glycine N- (phosphonomethyl) glycine production method

摘要

(57) (ie, "glyphosate") [Abstract] The present invention relates to an improved process for preparing esters of N- (phosphonomethyl) glycine and salts of N- (phosphonomethyl) glycine N- (phosphonomethyl) glycine. The method comprising placing in the presence of a noble metal catalyst, is reacted with oxygen, a substituted N- N- (phosphonomethyl) glycine reactants. N- replacement N- (phosphonomethyl) glycine reactant of the formula (V) [1] of At it is shown in the formula, independently, hydrogen, _halogen, -PO ³ R ¹² R _13,^{-SO 3} R _14, -NO _2, hydrocarbyl, and ^{R 1} and ^{R 2,} the substitution of _-CO 2 ^{R 15} except independently, ^{R 15} and ^{13, R 14 R 7, R 8, R 9, R 12, R} is the group consisting of cation is agronomically acceptable hydrogen, hydrocarbyl, and substituted ^hydrocarbyl; are selected from the group consisting of hydrocarbyl is selected from.