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Thiazine
Organic compound From Wikipedia, the free encyclopedia
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Thiazine /ˈθaɪəziːn/ is an organic compound containing a ring of four carbon, one nitrogen and one sulfur atom. There are three isomers of thiazine, 1,2-thiazine, 1,3-thiazine, and 1,4-thiazine, which differ by the arrangement of the nitrogen and sulfur atoms in the ring.
Derivatives of thiazine, often referred to as thiazines, are used for dyes, tranquilizers and insecticides.
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Preparation
1,4-thiazine can be prepared from the corresponding dione using aluminium powder at high temperature.[1]

Tautomers

Three tautomers of 1,4-thiazine exist as above.
See also
- Methylene blue, contains a related ring with nitrogen and a positively charged sulfur atom
- Phenothiazine, a thiazine fused with two benzene rings
- Thiomorpholine, a saturated analog of thiazine
References
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