Process for producing dialkyl dithiophosphoric acid esters

Details Process for producing dialkyl dithiophosphoric acid esters Process for producing 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

042833353

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 carried out in the presence of from 0.1 to 1.5 moles, per mole of organic chloride, of an anhydride of a fatty acid containing 2 to 5 carbon atoms.

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

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