Kwang-Su Choi, Sung‐Gon Kim
Nov 6, 2010
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound, C17H13ClO2, was obtained from the oxidation of 6-chloro-4-(2-phenylethenyl)chroman-2-ol, which was synthesized by the reaction of of (E)-3-(5-chloro-2-hydroxyphenyl)acrylaldehyde with styrylboronic acid using diethylamine as a catalyst. The six-membered pyranone ring of the chromane system has a screw-boat conformation. The dihedral angle between the least-squares planes of the chromane ring system and the styryl group is 85.28 (9)°.