| 摘要 |
Alkyl or aryl phosphonothioic dihalides and phosphinothioic monohalides are prepared by reacting an alkyl halide or an aryl halide with a pentavalent thiophosphorus compound having at least two halogens attached thereto, and preferably three halogens such as thiophosphoryl halide, in the presence of a halogen acceptor such as phosphorus, or sulfur under at least autogenous pressure at a temperature of from 200 DEG C. to 450 DEG C. The compounds obtained are useful as constituents in insecticides, fungicides, pharmaceuticals, and as intermediates in preparation of other organophosphorus compounds. |
