Mono- and disubstituted mercaptophosphorothionochloridates are prepared by reacting a disubstituted sulfide having the formula R.sub.2 S wherein each R is an independently selected alkyl, cycloalkyl or benzyl, with phosphorus pentasulfide and thiophosphorus trichloride at a temperature from about 150.degree. to about 300.degree. C. A molar ratio of R.sub.2 S to P.sub.4 S.sub.10 to P(S)Cl.sub.3 of 6:1:8 is preferred where the monosubstituted compound is desired, while a ratio of 6:1:2 is preferred where the disubstituted compound is desired. The compounds are useful as intermediates for compounds which exhibit biocidal properties, particularly insecticides and herbicides.
制备单取代和双取代的巯基
磷硫氯酸酯,通过将具有R.sub.2 S式的双取代
硫化物(其中每个R是独立选择的烷基,环烷基或苄基)与五
硫化二
磷和
三氯硫磷反应,在温度为约150℃至约300℃的条件下。当需要单取代化合物时,R.sub.2 S与P.sub.4 S.sub.10和P(S)Cl.sub.3的摩尔比为6:1:8是首选的,而当需要双取代化合物时,摩尔比为6:1:2是首选的。这些化合物可用作表现出
生物杀灭性质特别是
杀虫剂和
除草剂的化合物的中间体。