Method for preparation of n-phosphonomethylglycine

Details Method for preparation of n-phosphonomethylglycine Method for preparation of n-phosphonomethylglycine

C - Chemistry, Metallurgy

07

F

260/501.5

C07F 9/38 (2006.01) C07F 9/40 (2006.01)

Patent

CA 1215999

METHOD FOR PREPARATION OF N-PHOSPHONOMETHYLGLYCINE Abstract of the Disclosure A method of preparing N-phosphonomethylglycine comprising (a) reacting a triazine with an acyl halide to form the N-cyanomethyl-N-halo- methyl amide of the acyl halide; reacting the said amide with a phosphite to form a phosphonate compound; and hydrolyzing said phosphonate to yield N-phosphonomethylglycine. N-phosphonomethylglycine and certain salts are useful as post-emergence herbicides.

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