O,O-dialkyl-N-phosphonomethyl-N-halomethyl acetamide

Details O,O-dialkyl-N-phosphonomethyl-N-halomethyl acetamide O,O-dialkyl-N-phosphonomethyl-N-halomethyl acetamide

1983-11-21

1984-06-12

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

C07F 940

Patent

active

044540639

ABSTRACT:
A method for preparing N-phosphonomethylglycine comprising (a) O,O-dialkylaminomethylphosphonate with formaldehyde to produce a triazine; (b) reacting the triazine formed in step (a) with an acyl halide to form the O,O-dialkyl-N-phosphonomethyl-N-chloromethyl acetamide of the acyl halide; (c) reacting the amide formed in step (b) with metal cyanide to form O,O-dialkyl-N-cyanomethyl-N-acetamide; and (d) hydrolyzing the acetamide formed in step (c) to yield N-phosphonomethylglycine.

REFERENCES:
patent: 2635112 (1953-04-01), Fields
patent: 4425284 (1984-01-01), Felix

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