Journal of Chemical Crystallography p. 536 - 540 (2010)
Update date:2022-08-03
Topics:
Metz, Clyde R.
Knight, John D.
Pastine, Stefan J.
Pennington, William T.
Beam, Charles F.
A new type of substituted benzothiopyranone, 3-phenyl-2-(2-phenylhydrazino) -4H-1-benzothiopyran-4- one, has been prepared by the condensation-acid cyclization of polylithiated phenylacetic acid phenylhydrazide with lithiated methyl thiosalicylate. Absorption spectra, especially 13C NMR, provided good indication of its structure, which was conclusively established with X-ray rystal structure analysis. In comparison to the few benzothiopyran X-ray reports documented, the benzothiopyranone ring of the molecule was found to be essentially planar, with the 3-phenyl ring nearly perpendicular to the benzothiopyranone fused-ring system. Crystals of C21H 16N2OS are orthorhombic, P21212 1, a = 10.140(4) A , b = 10.432(4) A , c = 16.228(7) A , Z = 4, V = 1717(1) A 3, R1 = 0.0267 and wR 2 = 0.0725 for reflections with I>2σ(I). The molecular packing in the crystal is the result of N-H...O hydrogen bonding. Springer Science+Business Media, LLC 2010.
View MoreTianjin Derchemist Sci-Tech Co., Ltd.
website:http://www.derchemist.com
Contact:+86-22-58627059
Address:Xinmao Science and Technology Park,Huayuan Industrial Park
Shandong Bolode Bio-Technology Co., LTD
Contact:+86-0531-58966870
Address:136 Jingyi Road,Huaiyin District,Jinan,Shandong,China
Shandong Bolode Bio-Technology Co., LTD
Contact:+86-0531-58966870
Address:136 Jingyi Road,Huaiyin District,Jinan,Shandong,China
Airsea(Taizhou) Pharmaceutical Limited(expird)
Contact:+86-576-88057622
Address:Dubei, Duqiao, Linhai, Taizhou, Zhejiang, China Zip: 317016
Jinan Jiaquan Chemical Co.,Ltd
Contact:+86-531-62318366
Address:Room 502 of Yidonghuayuan No.601 Huaxin Road Licheng District Jinan China
Doi:10.1039/c0cc03256e
(2011)Doi:10.1002/jms.1860
(2010)Doi:10.1021/tx990090p
(1999)Doi:10.1021/ja110104e
(2011)Doi:10.1016/S0040-4039(01)80510-4
(1989)Doi:10.1021/jo101927a
(2011)