نتایج جستجو برای: 2 dioxo

تعداد نتایج: 2525681  

Journal: :Acta Crystallographica Section E Structure Reports Online 2009

Journal: :Acta Crystallographica Section E Structure Reports Online 2011

2013
TSEGAYE GASHAW GEBREMEDIHIN REDA HAILEMICHAEL AYALEW NEELAIAH BABU

A new series of 2-(3-oxo-3-phenylpropanoyl)-3-(substituted aryl)-1-thiazolidin-4-ones has been synthesized by cyclocondensation of ketoanils (the condensation products of 2, 4-dioxo-4phenyl butanal with primary amines) with mercaptoacetic acid. The chemical structures of the synthesized compounds were elucidated by elemental analysis, molecular weight determination, and UV, IR, 1H, 13C and DEPT...

2016
Mika Sakate Haruka Hosoda Takayoshi Suzuki

The crystal structures of bis-[2-(pyridin-2-yl)phen-yl]rhodium(III) complexes with the metal in an octahedral coordination containing chloride and aceto-nitrile ligands, namely (OC-6-42)-aceto-nitrile-chlorido-bis-[2-(pyridin-2-yl)phenyl-κ(2) N,C (1)]rhodium(III), [RhCl(C11H8N)2(CH3CN)] (1), thyminate(1-) and methanol, namely (OC-6-42)-methanol(5-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-1-...

Journal: :Journal of the American Chemical Society 2007

Journal: :Acta Crystallographica Section E Structure Reports Online 2012

2011
Thomas Gelbrich Mairi F. Haddow Ulrich J. Griesser

The title compound {systematic name: N-cyclo-hexyl-carba-moyl-4-[2-(7-meth-oxy-4,4-dimethyl-1,3-dioxo-1,2,3,4-tetra-hydro-isoquinolin-2-yl)eth-yl]benzene-sulfonamide}, C(27)H(33)N(3)O(6)S, displays an intra-molecular N-H⋯O=S inter-action, as well as inter-molecular N-H⋯O=C hydrogen bonds. The latter inter-actions lead to the formation of hydrogen-bonded chains parallel to the c axis. The confor...

Journal: :Molecules 2011
Hai-Xue Kuang Bing-You Yang Yong-Gang Xia Qiu-Hong Wang

Chemical investigation of the 50% ethanol eluate fraction from a macroporous resin of flowers of Datura metel L. collected in the Jiangsu Province of China resulted in the isolation of two new withanolides, baimantuoluoline G (1) and baimantuoluoside H (2). Their structures were elucidated as (12β,6β,22R)-1,10-seco-6,12,27-trihydroxy-26-oxo-witha-3,5,24-trienolide-1-oic acid-ε-lactone (1) and (...

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