Studies of neodolastanes — Synthesis of the tricyclic core of the trichoaurantianolides
作者:David R. Williams、Joseph R. Pinchman
DOI:10.1139/v2012-088
日期:2013.1
the synthesis of trichoaurantianolide C (5) are described. Stille cross-coupling reactions of (E)- and (Z)-β-stannyl-α,β-unsaturated esters with allylic acetate 32 provide for the stereocontrolled formation of nonconjugated 2,5-diene-1-ols. Studies of the asymmetric Sharpless epoxidation are utilized to establish diastereofacial selectivity for the preparation of a crucial C2 tertiary allylic alcohol