申请人:The Upjohn Company
公开号:US04424368A1
公开(公告)日:1984-01-03
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.
本发明涉及使用相应的氨硫代卡巴酰卤化物的磷衍生物作为中间体,制备氨硫代甲基卡巴酯的新工艺。这些卡巴酯可用作杀虫剂,对昆虫、螨和线虫有用。本发明描述了两种制备相应中间体的方法。一种制备方法通常使用适当的N-氯硫代磷酰胺与N-甲基卡巴莫卤化物反应。另一种制备方法通常使用N-氯硫代甲基卡巴莫卤化物与适当的磷酰胺反应。中间体将与各种醇反应,以在本发明的过程中产生所需的卡巴酯。