An effective synthesis of N-substituted 2-sulfenamoylbenzoates and 1,2-benzisothiazolin-3-ones that uses 1,2-benzisothiazolin-3-one as a leaving group

Add time:08/30/2019    Source:sciencedirect.com

N-Substituted 2-sulfenamoylbenzoates and 1,2-benzisothiazolin-3-ones were effectively synthesized by the substitution reaction between S-[2-(3-oxo-1,2-benzisothiazolinyl)]-2-mercaptobenzoates (2) and primary amines. The substitution reaction occurred on the sulfur atom of the 2-sulfenamoyl group of 2, and 1,2-benzisothiazolin-3-one behaved as a leaving group. The eliminated 1,2-benzisothiazolin-3-one could be reused as a starting material for the synthesis of 2. N,N-Disubstituted 2-sulfenamoylbenzoates were prepared by the reaction of 2 with secondary amines.

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