METHOD FOR PREPARING N-PHOSPHONOMETHYLGLYCINE AND INTERMEDIATE SUBSTANCE FOR ITS PREPARING Russian patent published in 2005 - IPC

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to the improved method for preparing N-phosphonomethylglycine. Method involves interaction of derivative of hexahydrotriazine of the formula (II):

wherein X represents CN, COOZ, CH₂OY and others; Z and Y represent hydrogen atom and others with triacylphosphite of the formula: P(OCOR³)₃ (III) wherein R³ means (C₁-C₁₈)-alkyl or aryl that can be substituted. The prepared product is hydrolyzed and (if X represents CH₂OY) oxidized. The proposed method is a simple in realization, economy and provides high degree of the end product purity.

EFFECT: improved preparing method.

19 cl, 11 ex