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4-(3-Bromo­thien-2-yl)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one

✍ Scribed by Zheng, Yun-Fa ;Zhang, Chun-Niu ;Yang, Ming-Hua

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
129 KB
Volume
63
Category
Article
ISSN
1600-5368

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📜 SIMILAR VOLUMES

4-(3-Bromo-5-chloro-2-hydroxy­benzyl­ide
4-(3-Bromo-5-chloro-2-hydroxy­benzyl­ideneamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
✍ Zhang, Xin-Li ;Li, Zong-Xiao 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 126 KB

The title compound, C 18 H 15 BrClN 3 O 2 , was obtained by reacting 3-bromo-5-chlorosalicylic aldehyde and 4-aminoantipyrine. The structure displays a trans configuration about the imine C N double bond. The N atom is also involved in an intramolecular O-HÁ Á ÁN hydrogen bond, which stabilizes the

4-[(3-Hydroxy­benzyl­idene)amino]-1,5-di
4-[(3-Hydroxy­benzyl­idene)amino]-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
✍ Jing, Zuo-Liang ;Fan, Zhi ;Yu, Ming ;Chen, Xin ;Diao, Chun-Hua ;Deng, Qi-Liang 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 182 KB

The structure of (I), with displacement ellipsoids for non-H atoms drawn at the 30% probability level.

(E)-4-[(2-Bromo­benzyl­idene)amino]-1,5-
(E)-4-[(2-Bromo­benzyl­idene)amino]-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
✍ Zhang, Chun-Niu ;Yang, Ming-Hua ;Yan, Guo-Bing ;Zhou, Ying-Ming 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 106 KB

In the title compound, C~18~H~16~BrN~3~O, the pyrazole ring is planar but substituent atoms are displaced from the mean plane. Weak C—H...Br and C—H...O hydrogen bonding between molecules helps to stabilize the crystal structure.