申请人:Hoechst Aktiengesellschaft
公开号:US03984448A1
公开(公告)日:1976-10-05
Production of dialkylthiophosphates of the general formula: ##EQU1## IN WHICH R.sub.1 and R.sub.2 stand for identical or different linear and/or branched alkyl radicals having from 1 to 6 carbon atoms, M stands for a metal cation and n stands for the valence of the metal cation concerned, wherein O,O-dialkylphosphites of the general formula: ##EQU2## in which R.sub.1 and R.sub.2 have the meanings given above, are reacted with a compound yielding the metal cation M, in the presence of pulverulent sulfur and organic solvents at elevated temperature, More particularly, high-grade and very pure dialkylthiophosphates are produced by using, as the compound yielding the metal cation M, the oxide of the corresponding mono- to tetravalent metal.
生产一般式为:##EQU1## 的二烷基硫代磷酸酯,其中R.sub.1和R.sub.2代表具有1至6个碳原子的相同或不同的线性和/或支链烷基基团,M代表金属阳离子,n代表相关金属阳离子的价数,其中在高温下,在有机溶剂和粉末硫的存在下,将一般式为:##EQU2## 的O,O-二烷基膦酸酯与产生金属阳离子M的化合物反应。特别地,通过使用相应的一价到四价金属的氧化物作为产生金属阳离子M的化合物,可以生产高品质和非常纯净的二烷基硫代磷酸酯。