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1,5-Di­methyl-4-{[(E)-3-oxo-3-(2-thienyl)-1-(tri­fluoro­methyl)-1-propenyl]­amino}-2-phenyl-1,2-di­hydro-3H-pyrazol-3-one

✍ Scribed by Yu, Ming ;Wang, Jin-Ling ;Miao, Fang-Ming

Publisher
International Union of Crystallography
Year
2002
Tongue
English
Weight
162 KB
Volume
58
Category
Article
ISSN
1600-5368

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📜 SIMILAR VOLUMES

3-(2,3-Di­hydro-1,5-di­methyl-3-oxo-2-ph
3-(2,3-Di­hydro-1,5-di­methyl-3-oxo-2-phenyl­pyrazol-4-yl­imino)-4,4,4-tri­fluoro-1-(2-thienyl)­butane-1,2-dione
✍ Wang, Jin-Ling ;Yu, Ming ;Su, Xiu-Mei ;Miao, Fang-Ming 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 259 KB

The title compound, C 19 H 14 F 3 N 3 O 3 S, is built up from pyrazolinone, thiophene, phenyl rings and tri¯uoropropanedicarbonyl moieties. Examination of the ÐC N and ÐC O bond lengths reveals that there is no electron delocalization over the molecule.

Ethyl 2-{[(1Z)-(3-methyl-5-oxo-1-phenyl-
Ethyl 2-{[(1Z)-(3-methyl-5-oxo-1-phenyl-1,5-di­hydro­pyrazol-4-yl­idene)(phenyl)­methyl]­amino}-3-phenyl­propanoate
✍ Zhang, Xin ;Zhu, Hua-Ling ;Xu, Hai-Zhen ;Dong, Mei 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 189 KB

In the title compound, C 28 H 27 N 3 O 3 , the pyrazolone ring and the N atom of the 2-amino-3-phenylpropanoate group are essentially coplanar. The compound is in an enamine-keto form and its structure is stabilized by one strong intramolecular N-HÁ Á ÁO hydrogen bond.