Process for preparing dialkyl and diaryl phosphonothioic halides

Details Process for preparing dialkyl and diaryl phosphonothioic halides Process for preparing dialkyl and diaryl phosphonothioic halides

1976-06-09

1978-02-28

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260125, 424315, C07F 904

Patent

active

040767469

ABSTRACT:
Dialkyl or diaryl phosphonothioic halides are prepared by contacting an alkyl or aryl halide, respectively, with phosphorus sesquisulfide, P.sub.4 S.sub.3, under at least autogenous pressure at a temperature of from about 200.degree. to about 400.degree. C. The compounds obtained are useful as pesticides and as intermediates in preparation of pesticides and other organo-phosphorus compounds.

REFERENCES:
patent: 2449933 (1948-09-01), Giammaria
patent: 2993929 (1961-07-01), Rattenbury

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