Process for preparing phosphonomethylated amino acids

Details Process for preparing phosphonomethylated amino acids Process for preparing phosphonomethylated amino acids

1984-10-04

1985-10-22

Evans, J. E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604655R, 260938, 560171, 562555, C07F 938

Patent

active

045487600

ABSTRACT:
A process for preparing phosphonomethylated amino acids comprising phosphonomethylating an N-carbamylated amino acid derivative with formaldehyde and a phosphorus source to obtain a phosphonomethylated N-carbamylated amino acid derivative which is then hydrolyzed to the corresponding phosphonomethylated amino acid, e.g. glyphosate, or acid derivative.

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patent: 3991095 (1976-11-01), Gaertner
patent: 4035177 (1977-07-01), Gaertner
patent: 4251258 (1981-02-01), Kaufman
Franz, J. E., "Glyphosphate and Related Chemistry," Monsanto Agricultural Products Co., St. Louis, Mo. 63166, United States, Adv. Pesticide Sci. Plenary Lect. Symp. Pap. Int. Congr. Pesticide Chem., 4th 1978, (Pub. 1979), vol. 2, pp. 139-137.

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