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8-Benzyl-5,7-bis­(benz­yloxy)-4H-benzopyran-4-one

✍ Scribed by Jia, Shu-Ping ;Guo, Zong-Hui ;Hao, Zhi-Fang ;Xu, Qiang ;Li, Jian-Xin


Book ID
104486982
Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
140 KB
Volume
62
Category
Article
ISSN
1600-5368

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5,7-Bis(benz­yloxy)-4H-benzopyran-4-one
✍ Hao, Zhi-Fang ;Xu, Qiang ;Lu, Zhi-Feng ;Li, Jian-Xin 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 199 KB

The title compound, C 23 H 18 O 4 , contains two molecules in the asymmetric unit which differ from each other in the dihedral angles between the benzyl and chromone groups. There are intramolecular and intermolecular C-HÁ Á ÁO interactions as well asstacking interactions in the crystal structure.

(E)-4-[4-(4-Chloro­benz­yloxy)-3-ethoxy­
✍ Zhang, Wen-Jun ;Duan, Zhong-Yu ;Zhao, Xin 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 155 KB

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