Processes for making phosphorus derivatives of aminothiomethylcarbamates
申请人:The Upjohn Company
公开号:US04354975A1
公开(公告)日:1982-10-19
This invention pertains to novel processes for preparing phosphorus derivatives of aminothiomethylcarbamates using as intermediates corresponding phosphorus derivatives of aminothiocarbamic halides. The carbamates are useful as pesticides against insects, mites, and nematodes. Two processes for preparing the corresponding intermediates are described. One preparation generally reacts an appropriate N-chlorothiophosphoramide with N-methylcarbamoyl halide. The other preparation generally reacts an N-chlorothiomethylcarbamoyl halide with an appropriate phosphoramide. The intermediate will react with various alcohols to produce the desired carbamates in the process of the invention.
Phosphorus derivatives of aminothiocarbamoyl halides
申请人:The Upjohn Company
公开号:US04234521A1
公开(公告)日:1980-11-18
This invention pertains to novel phosphorus derivatives of aminothiocarbamic halides and processes for their preparation. The carbamic halides are readily prepared by two general procedures. In one procedure an appropriate N-(chlorothio)phosphorus amide reactant is readily prepared by reacting the corresponding phosphorus amide with sulfur dichloride which reactant will react with N-methylcarbamoyl halide so as to produce the corresponding object compounds of this invention. In a different procedure the same compounds that are the object of this invention are prepared by reacting an appropriate corresponding phosphorus amide with an N-chlorothiomethylcarbamoyl halide reactant which reactant is readily prepared by reacting N-methylcarbamoyl halide with sulfur chloride. The novel compounds of this invention are intermediates for the preparation of pesticides.