Abstract:Topical application tests of the contact toxicity of trichlorfon and a congeneric series of acyloxy and vinyl derivatives were conducted on last-stage western spruce bodworm. Except for the lower acyloxy derivatives, all acyloxy trichlorfon derivatives were synthesized by the slight excess (5%) of trichlorfon and freshly distilled acid chloride in refluxing benzene. After termination of the hydrogen chloride evolution, the benzene solution was washed with water to remove unreacted trichlorfon, dried with sodiu… Show more
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