Process for preparing alkyl- and aryl phosphonothioic dihalides

Details Process for preparing alkyl- and aryl phosphonothioic dihalides Process for preparing alkyl- and aryl phosphonothioic dihalides

1975-02-10

1976-12-28

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 942

Patent

active

040001903

ABSTRACT:
Alkyl- and arylphosphonothioic dihalides are prepared by contacting a dialkyl or diaryl disulfide with phosphorus and phosphorus trihalide under at least autogenous pressure at a temperature of from about 200.degree. C. to about 400.degree. C. The compounds obtained are useful as constituents in insecticides, fungicides, pharmaceuticals and as intermediates in preparation of other organophosphorus compounds.

REFERENCES:
patent: 3429916 (1969-02-01), Baker et al.

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