Selectfluor-Triggered Tandem Cyclization of <i>o</i>-Hydroxyarylenaminones To Access Difluorinated 2-Amino-Substituted Chromanones
作者:Qinglan Zhao、Haoyue Xiang、Jun-An Xiao、Peng-Ju Xia、Jun-Jie Wang、Xiaoqing Chen、Hua Yang
DOI:10.1021/acs.joc.7b01339
日期:2017.9.15
difluorinated 2-amino-substituted chromanones. This novel protocol features mild reaction conditions, operational simplicity, and broad substrate scope. The enamine moiety in o-hydroxyarylenaminone played dual roles to enable high efficiency in the difluorination and intramolecular cyclization, leading to the accomplishment of a new class of difluorinated 2-amino-substituted chromanones for pharmaceutical studies
开发了一种实用且直接的合成路线,该路线通过Selectfluor引发的邻羟基芳基亚胺酮的串联环化反应来构建各种二氟化的2-氨基取代的苯并二氢呋喃酮。这种新颖的方案具有温和的反应条件,操作简便和广泛的底物范围。邻羟基芳基亚胺基酮中的烯胺部分起着双重作用,以实现高效的二氟化和分子内环化,从而完成了用于药物研究的新型一类二氟化2-氨基取代的苯并二氢呋喃酮。