intramolecular condensations of α-sulfonyl carbanions with α,β-unsaturated aldehydes. Desulfonylation provides an efficient stereocontrolled synthesis of allylic alcohols featuring the [9.3.0] cyclotetradecane skeleton which characterizes the dolabellane diterpenes.
通过α-磺酰基碳负离子与α,β-不饱和醛的分子内缩合制备了十一元碳环。脱磺酰化提供了以[9.3.0]
环十四烷骨架为特征的烯丙基醇的高效立体控制合成,该骨架表征了多兰烷二萜。