Synthesis of (+)-Lineariifolianone and Related Cyclopropenone-Containing Sesquiterpenoids
作者:Keith P. Reber、Ian W. Gilbert、Daniel A. Strassfeld、Erik J. Sorensen
DOI:10.1021/acs.joc.9b00478
日期:2019.5.3
A synthesis of the proposed structure of lineariifolianone has been achieved in eight steps and 9% overall yield starting from (+)-valencene, leading to a reassignment of the absoluteconfiguration of this unusual cyclopropenone-containing naturalproduct. Key steps in the synthetic route include kinetic protonation of an enolate to epimerize the C7 stereocenter and a stereoconvergent epoxide opening