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One-Pot Synthesis of Benzo[1,4]thiazin-3(4H)‑ones and a Theoretical Study of the S–N Type Smiles Rearrangement Mechanism

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posted on 05.10.2012, 00:00 authored by Yongmei Zhao, Yanmiao Wu, Jiong Jia, Dongju Zhang, Chen Ma
Benzo­[1,4]­thiazin-3­(4H)-one derivatives are conveniently prepared in one pot via a Smiles rearrangement (SR) tandem reaction. In order to understand the reaction, we present here a theoretical study on the S–N type SR mechanism.