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Degenerate Rearrangement of 9-Isopropenyl-9,10-dimethylphenanthren-9-yl and 9,10-Dimethyl-9-(trans-1-methylprop-1-en-1-yl)phenanthren-9-yl Cations.

✍ Scribed by V. G. Artamoshkin; V. A. Bushmelev; A. M. Genaev; V. G. Shubin

Publisher
John Wiley and Sons
Year
2007
Weight
18 KB
Volume
38
Category
Article
ISSN
0931-7597

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✍ Gao, Yuan ;Zhang, Yan ;Tu, Shujiang πŸ“‚ Article πŸ“… 2006 πŸ› International Union of Crystallography 🌐 English βš– 123 KB

The title compound, C 20 H 16 O 6 , was synthesized by the reaction of 4-methoxybenzaldehyde with triacetic acid lactone in ethylene glycol catalyzed by KF-alumina. The pyran ring adopts a boat conformation and the benzene ring is perpendicular to the mean plane through the fused ring system.