Process for preparing methyl ester of O,O-dimethyl-dithiophospho

Details Process for preparing methyl ester of O,O-dimethyl-dithiophospho Process for preparing methyl ester of O,O-dimethyl-dithiophospho

1975-03-20

1976-12-14

Sutto, Anton H.

Chemistry of carbon compounds

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

260941, C07F 9165

Patent

active

039976300

ABSTRACT:
The methyl ester of O,O-dimethyl-dithiophosphoryl acetic acid is prepared with minimal formation of by-products by reacting the sodium salt of O,O-dimethyl-dithiophosphoryl acid with the methyl ester of 2-chloroacetic acid at a pH of 5.5 to 7, at relatively high temperatures, of the order of 80.degree. to 100.degree. C, for reaction times of 10 to 15 minutes. The process can be carried out continuously.

REFERENCES:
patent: 2358133 (1944-09-01), Stoesser et al.
patent: 3047459 (1962-07-01), Perini et al.
patent: 3591666 (1971-07-01), Pellegrini et al.

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