Summary
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1.
Diethyl hydrogen phosphorothionate has been prepared by the addition of sulfur to diethyl hydrogen-phosphite in presence of one of the following amines; triethylamine, pyridine, and diethylaniline.
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2.
Ethyl esters, some mixed alkyl esters, and some mixed ester-amides of mono- and di-thionopyrophosphoric acids have been synthesized.
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3.
Tests have been made of the action of the synthesized substances on the corn weevil, and four of them have been tested on white mice and guinea pigs.
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Literature cited
G. Shrader, Prog. Chem., 22, 6, 712–761 (1953); N. N. Melnikov, Prog. Chem., 22, 3, 253–278 (1953).
A. D. F. Toy, J. Am. Chem. Soc., 73, 4670–4674 (1951).