An Improved Synthesis of 3-(1,1-Dimethylallyl)coumarins
The syntheses of several 3-(1,1-dimethylallyl)coumarins, simple or bearing additional furan or pyran rings is achieved starting from the corresponding C-3 unsubstituted derivatives.The key step involves Ireland-Claisen rearrangements of allyl esters.
Hernandez-Galan, Rosario,Salva, Javier,Massanet, Guillermo M.,Collado, Isidro G.
p. 1701 - 1710
(2007/10/02)
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