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9-(4-Bromophenyl)-3,3,6,6-tetramethyl-3,4,6,7-tetrahydro-2H-xanthene-1,8(5H,9H)-dione

✍ Scribed by Bigdeli, M. Ali ;Mahdavinia, Gholam Hossein ;Amani, Vahid

Publisher: International Union of Crystallography
Year: 2007
Tongue: English
Weight: 646 KB
Volume: 63
Category: Article
ISSN: 1600-5368
DOI: 10.1107/s1600536807033545

No coin nor oath required. For personal study only.

✦ Synopsis

The title compound, C 23 H 25 BrO 3 , was synthesized by the reaction of p-bromobenzaldehyde with dimedone and HClO 4 / SiO 2 in EtOH. In the molecule, the dihydropyran ring adopts a boat conformation and the two cyclohexene rings are in a trans conformation.

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