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3-(4-Chloro­phenyl)-2H-benz­[b][1,4]­oxazine

✍ Scribed by Vencato, Ivo ;Ferri, Pedro H. ;Faria, Lourival C. ;Santos, Suzana C. ;Lariucci, Carlito

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
204 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 14 H 10 ClNO, is a nitrogen derivative closely related to natural 3 0 ,7-epoxy-8,4 0 -oxyneolignans, which are of interest because of their cytotoxic activity. Centrosymmetric hydrogen bonding occurs between pairs of molecules.

📜 SIMILAR VOLUMES

2-(2-Nitro­phenyl)-4,5-benz-1,3-oxazin-6
2-(2-Nitro­phenyl)-4,5-benz-1,3-oxazin-6-one
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Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.038 wR factor = 0.105 Data-to-parameter ratio = 11.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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The title compound, C~27~H~26~ClN~3~O~3~, was prepared by reacting 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one and 4-(4-chlorobenzyloxy)-3-ethoxybenzaldehyde. The central ethylvanillin group makes dihedral angles of 63.00 (11), 31.83 (7) and 74.47 (8)° with the chlorobenzene ring, the pyrazolone ring

(E)-4-[3-(4-Chloro­benz­yloxy)-4-methoxy
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✍ Duan, Zhong-Yu ;Zhang, Wen-Jun ;Li, Gang ;Han, En-Shan ;Du, Feng-Yun 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 157 KB

In the title compound, C~26~H~24~ClN~3~O~3~, the vanillin group makes dihedral angles of 8.09 (9), 74.91 (8) and 44.66 (9)° with the pyrazolone ring, the terminal chlorobenzene ring and the terminal phenyl ring, respectively. The crystal packing is stabilized by intermolecular C—H...O hydrogen bonds

(E)-4-[4-(4-Chloro­benz­yloxy)-3-methoxy
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✍ Duan, Zhong-Yu ;Li, Gang ;Zhang, Wen-Jun ;Han, En-Shan ;Du, Feng-Yun 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 95 KB

The title compound, C~26~H~24~ClN~3~O~3~, was prepared by the reaction of 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one and 4-(4-chlorobenzyloxy)-3-methoxybenzaldehyde. The vanillin group makes dihedral angles of 6.21 (10) and 48.05 (6)°, respectively, with the pyrazolone and chlorobenzene rings. The c

1,3-Bis(4-chloro­benz­yl)pyrimidine-2,4(
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✍ Yang, Feng-Ling ;Li, Gong-Chun 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 130 KB

In the crystal structure of the title compound, C 18 H 14 Cl 2 N 2 O 2 , there are weak intermolecular C-HÁ Á ÁO hydrogen-bond interactions. In the title molecule, the plane of the pyrimidine ring makes angles of 71.6 (1) and 71.72 (9) with the planes of the two benzene rings.