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3,7,7-Tri­methyl-1-phenyl-1,6,7,8-tetrahydro-5H-pyrazolo­[3,4-b]­quinolin-5-one

✍ Scribed by Low, John Nicolson ;Mera, Jaime ;Quiroga, Jairo ;Cobo, Justo

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
488 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 19 H 19 N 3 O, crystallizes in the space group P1, with Z H = 2. Weak CÐHÁ Á ÁN, CÐHÁ Á ÁO and CÐ HÁ Á Á% interactions link the molecules into ribbons.

📜 SIMILAR VOLUMES

4-(4-Chloro­phenyl)-1,7,7-tri­methyl-1,2
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✍ Tu, Shujiang ;Zhu, Xiaotong ;Zhang, Jinpeng ;Xu, Jianing ;Wang, Qian 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 130 KB

The title compound, C 18 H 20 ClNO 2 , has been synthesized by the reaction of 4-chlorobenzaldehyde, Meldrum's acid, dimedone and CH 3 NH 3 Cl(NaOAc) in ethanol under microwave irradiation. The pyridone ring adopts a screw-boat conformation and the cyclohexenone ring an envelope conformation.

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✍ Low, John N. ;Cobo, Justo ;Mera, Jaime ;Quiroga, Jairo ;Glidewell, Christopher 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 278 KB

Molecules of the title compound, C 22 H 24 ClN 3 O, are linked by two pairs of CÐHÁ Á Á%(arene) hydrogen bonds into centrosymmetric dimers.

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✍ Low, John Nicolson ;Cobo, Justo ;Nogueras, Manuel ;Sánchez, Adolfo ;Insuasty, Br 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 263 KB

Single-crystal X-ray study T = 120 K Mean '(C±C) = 0.003 A Ê R factor = 0.056 wR factor = 0.150 Data-to-parameter ratio = 16.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.