Syntheses of 8-C-(1,1-dimethylallyl) Flavones and 3-methyl Flavonols
- 1 February 1994
- journal article
- research article
- Published by Taylor & Francis in Natural Product Letters
- Vol. 4 (1) , 21-28
- https://doi.org/10.1080/10575639408043887
Abstract
8-(1,1-Dimethylallyl)-chrysin and 8-(1,1-dimethylallyl)-3-methylgalangin were synthesized in 70% and 73% yields, respectively, by sigmatropic rearrangement of 7-(3,3-dimethylallyl)-chrysin and 7-(3,3-dimethylallyl)-3-methylgalangin. The rearrangements were performed in a mixture of fused anhydrous sodium acetate and refluxing acetic anhydride as solvent.Keywords
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