科研之友
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摘要
Synthesis of C8-prenylated flavonols and flavanones via the palladium-catalyzed 7-O-1,1-dimethylprop-2-enylation, followed by Claisen rearrangement is described. Two regioselectivities (carbon-carbon bond formation at either the tail or head of the prenyl group and carbon-carbon bond formation at either C8 or C6) were efficiently improved when acetic anhydride was used as a solvent instead of N,N-dimethylformamide.
- 出版日期2012-5
