Synthesis of Functionalized Indolines and Dihydrobenzofurans by Iron and Copper Catalyzed Aryl C–N and C–O Bond Formation
作者:Martyn C. Henry、Hans Martin Senn、Andrew Sutherland
DOI:10.1021/acs.joc.8b02888
日期:2019.1.4
triflimide-catalyzed iodination, followed by a copper(I)-catalyzed intramolecular N- or O-arylation step leading to indolines, dihydrobenzofurans, and six-membered analogues. The general applicability and functional group tolerance of this method were exemplified by the total synthesis of the neolignan natural product, (+)-obtusafuran. DFT calculations using Fukui functions were also performed, providing a molecular
描述了一种简单有效的一锅两步分子内芳基C–N和C–O键形成过程,该过程可利用铁和铜催化制备各种苯并稠合的杂环骨架。对活化的芳基环进行高度区域选择性,三氟甲磺酸铁(III)催化的碘化,然后进行铜(I)催化的分子内N-或O-芳基化步骤,生成二氢吲哚,二氢苯并呋喃和六元类似物。该方法的一般适用性和官能团耐受性由新木脂素天然产物(+)-奥布他呋喃的全合成例示。还进行了使用Fukui函数的DFT计算,从而为高度区域选择性的芳烃碘化过程提供了分子轨道原理。