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Rearrangement of 5-O-prenyl flavones: a regioselective access to 6-C-(1,1-dimethylallyl)- and 8-C-(3,3-dimethylallyl)-flavones

✍ Scribed by Jean-Baptiste Daskiewicz; Christine Bayet; Denis Barron


Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
100 KB
Volume
42
Category
Article
ISSN
0040-4039

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## Abstract The photochemical reactions of 2‐acylphenyl methacrylates (= 2‐acylphenyl 2‐methylprop‐2‐enoates) **1** were investigated. Irradiation of 2‐acylphenyl methacrylates **1a**–**d** in MeCN gave the tricyclic lactones **2a**–**d** in good yields, together with a small amount of OCO bond c