The title compound, C 22 H 19 NO 3 , was synthesized by the reaction of 1-naphthol with ethyl cyanoacetate and benzaldehyde in ethanol under microwave irradiation. In the crystal structure, weak intermolecular N-HÁ Á ÁO hydrogen bonds link the molecules into centrosymmetric dimers, which are held to
Ethyl 2-amino-5-oxo-4-(p-tolyl)-4H,5H-pyrano[3,2-c]chromene-8-carboxylate
✍ Scribed by Wang, Jing ;Shi, Daqing ;Wang, Xiangshan
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 149 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Single-crystal X-ray study T = 296 K Mean '(C±C) = 0.003 A Ê Disorder in main residue R factor = 0.040 wR factor = 0.101 Data-to-parameter ratio = 12.8
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A view of the molecular structure of (I). The dashed line indicates the intramolecular N-HÁ Á ÁO hydrogen bond. organic papers Acta Cryst. (2005). E61, o3104-o3105 Guo and Gu C 23 H 21 NO 4 o3105
The title compound, C 23 H 21 NO 4 , was synthesized by the reaction of 1-naphthol with ethyl cyanocaetate and 4methoxybenzaldehyde in ethanol under microwave irradiation. In the structure of C 23 H 21 NO 4 , there are intramolecular and intermolecular N-HÁ Á ÁO hydrogen bonds, also C-HÁ Á Á interac
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