A direct dehydroxylative and decarboxylative coupling between a large number of allylic alcohols and alkynoic acids was realized affording 1,4-enyne motifs in high efficiency. In this reaction, calcium-promoted C–OH bond cleavage was crucial, which facilitated the sequential decarboxylation, and thus enabled the palladium-catalyzed allyl–alkynyl coupling, which occurred in an environmentally benign
实现了大量
烯丙醇和炔酸之间的直接脱羟基和脱羧偶联,从而高效地提供了 1,4-烯炔基序。在该反应中,
钙促进的 C-OH 键断裂是至关重要的,这促进了顺序脱羧,从而使
钯催化的烯丙基-炔基偶联成为可能,这种偶联以一种环境友好的方式发生,可耐受多种官能团。该协议已成功用于制备克级抗癌活性鲁珀罗衍
生物。