
Tetrahedron Letters p. 2703 - 2706 (1986)
Update date:2022-08-03
Topics:
Pirrung, Michael C.
Thomson, Stephen A.
Lewis acid catalyzed condensation of unsaturated orthoformates with dienol ethers gives enone-acetals suitable for intramolecular photocycloadditions, yielding heterocyclic precursors to sesquiterpene lactones.
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