Process for producing O,O-dialkyl dithiophosphoric acid esters

Details Process for producing O,O-dialkyl dithiophosphoric acid esters Process for producing O,O-dialkyl dithiophosphoric acid esters

1980-02-22

1981-08-11

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603406, 2603409R, 260979, 549 14, 549 21, C07D20948, C07F 9173, C07D31912

Patent

active

042833388

ABSTRACT:
Disclosed is a method for improving the yield of dialkyl dithiophosphoric acid esters produced by the Lewis acid catalyzed reaction of an O,O-dialkyl dithiophosphoric acid and an organic chloride. More specifically, the method concerns the improvement wherein the reaction is conducted under sufficient pressure to maintain the liberated hydrogen chloride in the reaction system during the course of the reaction.

REFERENCES:
patent: 2725328 (1955-11-01), Diveley et al.
patent: 2815350 (1957-12-01), Speck
patent: 3849439 (1974-11-01), Imamura et al.

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