An iterative procedure for the synthesis of the diprenylated coumarins balsamiferone and gravelliferone from umbelliferone via multiple [3.3] sigmatropic rearrangements
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 6,p. 400-402
- https://doi.org/10.1039/c39870000400
Abstract
Repeated sequences of [3.3] sigmatropic rearrangements initiated by a Claisen rearrangement permit the synthesis of the 3,6-disubstituted umbelliferone derivatives balsamiferone (4) and gravelliferone (6) from umbelliferone.Keywords
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