Compounds having the formula ##STR1## in which R is methyl or ethyl, Y is sulfur or oxygen, and R.sub.1 and R.sub.2 are the same or different tertiary alkyl groups each having from 4 to 6 carbon atoms, are insecticides and nematicides, especially for control of soil insects and nematodes. Symmetrical compounds (R.sub.1 .dbd.R.sub.2) may be prepared by reaction of an alkali metal mercaptide with an alkyl (thio) phosphonic dihalide. The alkali metal mercaptide may be prepared by reaction of a tertiary alkyl mercaptan with an alkali metal or alkali metal hydride.
A trithiophosphonic acid ester as an insecticide and nematocide
申请人:Sumitomo Chemical Company, Limited
公开号:EP0239274A1
公开(公告)日:1987-09-30
A trithiophosphonic acid ester, of formula:
wherein R is a methyl or ethyl group is a useful insecticide or nematocide. The new compounds are prepared by conversion of the corresponding alkyl S,S-di-tert-butyl phosphonite.
式中的三硫代膦酸酯是一种有用的杀虫剂或杀线虫剂:
式中 R 为甲基或乙基的三硫代膦酸酯是一种有用的杀虫剂或杀线虫剂。这些新化合物是由相应的烷基 S,S-二叔丁基亚膦酸转化制备的。
CHAVDARIAN, CHARLES G.;CHANG, LYDIA L.;ONISKO, BRUCE C.;EARHART, JONATHAN+
作者:CHAVDARIAN, CHARLES G.、CHANG, LYDIA L.、ONISKO, BRUCE C.、EARHART, JONATHAN+