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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 22, 1992 - Issue 18
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Original Articles

A Simple Synthesis of (Z) 3-Arylmethylene-2-Methyl 1,2-Benzothiazin-4-(3H)Ones 1,1-Dioxide

Piero Dalla Crocea Dipartimento di Chimica, Organica e Industriale, Centro C.N.R.-Via Venezian 21, 1-20133, Milano, Italy
,
Raffaella Ferraccioli Dipartimento di Chimica, Organica e Industriale, Centro C.N.R.-Via Venezian 21, 1-20133, Milano, Italy
&
Concetta La Rosa Istituto di Chimica Organica-Facoltà di Farmacia, Via Venezian 21, 1-20133, Milano, Italy
Pages 2621-2624 | Received 06 May 1992, Published online: 23 Sep 2006
 
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Abstract

A one-pot approach to 3-arylmethylene-2-methyl-1,2-benzothiazin -4-(3H)ones 1, 1-dioxide (3) starting from 2-methyl-1,2-benzothiazin-4-one and the appropriate aldehydes, in the presence of sodium methoxide/methanol, is described.

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