Regio- and Stereoselective Synthesis of Cyclopentenones: Intermolecular Pseudo-Pauson-Khand Cyclization
作者:José Barluenga、Ana Álvarez-Fernández、Ángel L. Suárez-Sobrino、Miguel Tomás
DOI:10.1002/anie.201105362
日期:2012.1.2
two‐step access to polysubstituted cyclopentenones from terminal alkynes, [M(CO)6], and bromoalkenes is described. This protocol is an alternative to the intermolecular Pauson–Khand reaction, and can be used with a variety of bromoalkenes. Moreover, the final quenching allows the installation of reactive electrophiles (E). The enantiopure product cyclopentenones can be synthesized with an all‐carbon‐substituted
分两步进行:描述了非常简单的两步访问末端炔烃[M(CO)6 ]和溴代烯烃的多取代环戊烯酮的方法。该方案是分子间Pauson-Khand反应的替代方案,可用于多种溴代烯烃。而且,最后的淬灭允许安装反应性亲电试剂(E)。对映体纯产物环戊烯酮可以与全碳取代的季立体中心合成。