Pesticidal ester preparation

Details Pesticidal ester preparation Pesticidal ester preparation

1996-10-29

1998-05-12

Ambrose, Michael G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Esters having the thiocarboxylate group, -cx-, wherein the...

558241, 558242, C07C33304

Patent

active

057507570

ABSTRACT:
A process for the preparation of an S-alkyl ester of an N-alkyl carbamothioic acid having the formula: ##STR1## wherein R and R.sub.2 are each an alkyl group and R.sub.1 is hydrogen or alkyl, which includes refluxing the corresponding alkyl ester of N-alkyl thiocarbamio acid having the formula I ##STR2## wherein R and R.sub.2 are each alkyl and R.sub.1 is hydrogen or alkyl, in the presence of an acid catalyst selected from the group consisting of iodine and sulfuric acid.

REFERENCES:
patent: 3953427 (1976-04-01), Matolesy et al.
Kinoshita, Y. et al. "Acid Catalyzed Rearrangement of Thionocarbamates." Agr. Biol. Chem. (1966): 30(7), 710-712.
Elderfield, R.C. and F.W. Short. "Synthesis and Reactions of Certain Benzothiazoles." J. Org. Chem. (1953): 18, 1092-1103.

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