A convenient synthesis of 2H-3,4-dihydro-1,4-benzothiazines

Article abstract of DOI:10.1080/00397919809458690

Aminothioalkenols react with paratoluenesulfonic acid in benzene or with phosphoric acid in toluene, and provide mainly heterocyclization in 2H-3,4- dihydro-1,4-benzothiazines; formation of some indenes and diene (in one case) was observed too.

Full text of DOI:10.1080/00397919809458690

Synthetic Communications
ISSN: 0039-7911 (Print) 1532-2432 (Online) Journal homepage: http://www.tandfonline.com/loi/lsyc20
A Convenient Synthesis of 2H-3,4-Dihydro-1,4-
Benzothiazines
Armelle Sauleau , Michele David & Jean Sauleau
To cite this article: Armelle Sauleau , Michele David & Jean Sauleau (1998) A Convenient
Synthesis of 2H-3,4-Dihydro-1,4-Benzothiazines, Synthetic Communications, 28:22, 4105-4121,
DOI: 10.1080/00397919809458690
To link to this article: http://dx.doi.org/10.1080/00397919809458690
Published online: 11 Mar 2009.
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Date: 23 April 2016, At: 07:20