发明授权
US4686210A S-(oxoalkyl)trithiophosphonate insecticides 失效
S-(氧代烷基)三硫代磷酸酯类杀虫剂

S-(oxoalkyl)trithiophosphonate insecticides
摘要:
Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; R.sub.3 is hydrogen or methyl; and R.sub.4 is C.sub.1 -C.sub.4 alkyl; R.sub.3 and R.sub.5 taken together form a trimethylene chain, are insecticides.
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