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Organophosphorus compounds. III. —Structure and activity of certain OO‐dialkyl S‐(N‐alkoxycarbonylcarbamoylmethyl) phosphorothiolothionates
Author(s) -
Pianka M.
Publication year - 1967
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740180206
Subject(s) - chemistry , aphis , alkyl , carbamate , phosphate , carbon chain , tetranychus , methyl group , nitrogen , medicinal chemistry , organic chemistry , stereochemistry , botany , biology , aphid , spider mite , pest analysis
Several dialkyl S‐(N‐alkoxycarbonylcarbamoylmethyl) phosphorothiolothionates and related compounds were synthesised and tested for contact (2 days) and systemic (2 days) activity by root‐uptake against Aphis fabae and Tetranychus telarius. The activity was more affected by increase in the length of the alkyl chain in the phosphate part than by increase in the carbamate part of the compounds. Substitution by a methyl group on the carbon of the S‐methyl reduced activity, whereas substitution by a methyl group on the nitrogen atom broadened the spectrum of activity.