Alkynyl Halides in Ruthenium(II)-Catalyzed [2+2] Cycloadditions of Bicyclic Alkenes
作者:Anna Allen、Karine Villeneuve、Neil Cockburn、Elisabeth Fatila、Nicole Riddell、William Tam
DOI:10.1002/ejoc.200800424
日期:2008.8
Ru-catalyzed [2+2] cycloadditions between bicyclic alkenes and alkynyl halides were found to occur in moderate to good yields. The presence of the halide moiety greatly enhances the reactivity of the alkyne component in the cycloaddition and can be transformed into a variety of products that are difficult or impossible to obtain by direct cycloaddition. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim
发现双环烯烃和炔基卤化物之间的 Ru 催化的 [2+2] 环加成以中等至良好的产率发生。卤化物部分的存在极大地增强了炔烃组分在环加成中的反应性,并且可以转化为各种难以或不可能通过直接环加成获得的产物。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)