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Updated: Jun 5, 2026
08:43
Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
Methyl 2-acetonyl-4-hydr-oxy-2H-1,2-benzothia-zine-3-carboxyl-ate 1,1-dioxide
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Abstract:
In the mol-ecule of the title compound, C(13)H(13)NO(6)S, the thia-zine ring adopts a distorted sofa conformation. The enolic H atom is involved in intra-molecular O-H⋯O hydrogen bonding besides the weaker C-H⋯O=S and C-H⋯O=C inter-actions.
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Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the unhybridized p...
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the unhybridized p...