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4-Hydroxy-3-[(2 E )-3-(3,4,5-trimethoxyphenyl)prop-2-enoyl]-2 H -chromen-2-one

✍ Scribed by Mechi, Lassaad; Chtiba, Samar; Hamdi, Naceur; Ben Hassen, Rached


Book ID
121817822
Publisher
International Union of Crystallography
Year
2009
Tongue
English
Weight
484 KB
Volume
65
Category
Article
ISSN
1600-5368

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The title compound, C 18 H 18 O 5 , was prepared by the condensation of 2-hydroxyacetophenone with 3,4,5-trimethoxybenzaldehyde. The trimethoxyphenyl and hydroxyphenyl rings of the chalcone system are approximately coplanar.

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✍ Yathirajan, H. S. ;Mayekar, Anil N. ;Sarojini, B. K. ;Narayana, B. ;Bolte, Micha 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 154 KB

The geometric parameters of the title molecule, C~27~H~25~NO~4~, are in the usual ranges. The central C=C double bond is __trans__ configured, with the two C atoms slightly twisted out of the plane of the naphthyl group. The dihedral angle between the two fused ring systems is 40.90 (4)°.