Process for the preparation of N-phosphonomethyl glycine

Details Process for the preparation of N-phosphonomethyl glycine Process for the preparation of N-phosphonomethyl glycine

1979-10-15

1980-12-02

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2605011, C07F 938

Patent

active

042370655

ABSTRACT:
N-phosphonomethyl glycine is prepared starting from glycine, formaldehyde and a tertiary base in alcoholic solution. After completion of the reaction, a dialkyl phosphite is added. The reaction product is hydrolyzed, and acidification yields the desired product in good purity.

REFERENCES:
patent: 2635112 (1953-04-01), Fields
patent: 2847442 (1958-08-01), Sallmann
patent: 3288846 (1966-11-01), Irani et al.
patent: 3549728 (1970-12-01), Balde et al.
patent: 3956370 (1976-05-01), Parry et al.
Fields, "J.A.C.S.", vol. 74 (1952), pp. 1528-1531.

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