A selective procedure for α-alkenylation of enones involving Pd-catalyzed alkenyl-alkenyl coupling and its application to a convergent and efficient synthesis of nakienone B
作者:Milan Pour、Ei-ichi Negishi
DOI:10.1016/0040-4039(96)00962-8
日期:1996.7
A convergent and efficient synthesis of a marine natural product, nakienone B (1), was achieved using a new protocol for α-alkenylation of enones involving Pd-catalyzed coupling of alkenylzincs with alkenyl iodides. This protocol features (i) avoidance of acidic conditions and (ii) flexibility in charge affinity pattern with respect to the two akenyl groups to be coupled.
使用涉及烯基锌与烯基碘化物的钯催化偶合的烯酮的α-烯基化新方案,实现了海洋天然产物nakienone B(1)的收敛和高效合成。该协议的特点是(i)避免酸性条件和(ii)相对于要偶联的两个烯基在电荷亲和力模式上的灵活性。