Palladium-catalyzed cascade 5-<i>exo-trig</i> radical cyclization/aromatic C–H alkylation with unactivated alkyl iodides
作者:Xi Sun、Xu Dong、Yi Yang、Jiangchen Fu、Yan Wang、Zirui Li、Yuying Liu、Hui Liu
DOI:10.1039/d1ob00346a
日期:——
A novel and convenient palladium-catalyzed cascade 5-exo-trig radical cyclization/aromatic C–H alkylation with unactivated alkyl iodides has been described. This strategy provides an efficient access to a variety of 3a-methyl-1,2,3,3a,4,8b-hexahydroindeno[1,2-b]pyrrole derivatives, which facilitate access to a series of medically important heterocyclic bioactive molecules. This protocol involves mild
已经描述了一种新型且方便的钯催化的带有未活化烷基碘的级联5- exo-trig自由基环化/芳族CH烷基化反应。该策略提供了对各种3a-甲基-1,2,3,3a,4,8b-六氢茚并[1,2- b ]吡咯衍生物的有效利用,这有助于获得一系列医学上重要的杂环生物活性分子。该方案涉及温和的催化反应条件,并显示出高的官能团耐受性和高的立体选择性。机理研究表明该反应涉及烷基自由基途径。