Crystal structures of the sulfones of 2,3-diphenyl-2,3-dihydro-4H-1,3-benzothiazin-4-one and 2,3-diphenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one

Autor: Hemant P. Yennawar, Tapas K. Mal, Carlos N. Pacheco, Anthony F. Lagalante, Mark A. Olsen, Michael W. Russell, Grace C. Muench, Quentin J. Moyer, Lee J. Silverberg

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 79, Iss 3, Pp 221-225 (2023)

The title sulfones, 2,3-diphenyl-2,3-dihydro-4H-1,3-benzothiazine-1,1,4-trione, C20H15NO3S, and 2,3-diphenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazine-1,1,4-trione, C19H14N2O3S, crystallize in space group P21/n with two molecules in each of the asymm

Externí odkaz: https://doaj.org/article/2bf33ddeb5e14201aea6fa04acf2d749

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Crystal structures of 2-(4-nitrophenyl)-3-phenyl-2,3-dihydro-4H-1,3-benzothiazin-4-one and 2-(2-nitrophenyl)-3-phenyl-2,3-dihydro-4H-1,3-benzothiazin-4-one

Autor: Yiwen Xie, Aaron S. Cali, Lee J. Silverberg, Hemant P. Yennawar

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 4, Pp 414-417 (2015)
Acta Crystallographica Section E: Crystallographic Communications

In the crystal structures of the racemic para and ortho isomers of 2-(4-nitro­phen­yl)-3-phenyl-2,3-di­hydro-4H-1,3-benzo­thia­zin-4-one, the six-membered thia­zine ring of the benzo­thia­zone parent mol­ecule displays a screw-boat conformat

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https://doi.org/10.1107/s2056989015004545

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rac-2,3-Diphenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one 1-oxide

Autor: Hemant P. Yennawar, Duncan J. Noble, Ziwei Yang, Lee J. Silverberg

Publikováno v: IUCrData, Vol 2, Iss 8, p x171112 (2017)

In the title compound, C19H14N2O2S, the thiazine ring exhibits a screw-boat pucker. The oxygen atom on the sulfur atom of the ring is pseudo-axial on the thiazine ring. In the crystal, 21 screw-related molecules are linked by C—H...Ocarbonyl hydrog

Externí odkaz: https://doaj.org/article/30fe6b58b63b480781923bb1f75d05c1