Magnesiate-Utilized/Benzyne-Mediated Approach to Indenopyridones from 2-Pyridones: An Attempt To Synthesize the Indenopyridine Core of Haouamine
作者:Tomasz J. Idzik、Aleksandra Borzyszkowska-Ledwig、Łukasz Struk、Jacek G. Sośnicki
DOI:10.1021/acs.orglett.9b03806
日期:2019.12.6
agents, mediated by benzyne generated in situ, under optimized conditions, is described. Following the developed protocol, rare C4a-arylsubstituted indeno[2,1-b]pyridones, resembling the core of haouamine, were obtained. The protocol offering the one-pot synthesis directly from 2-pyridone is also described.
使用R 3 MgLi类型的菱镁酸酯作为亲核试剂,可高效,短时间地合成顺式稠合的茚并[ 2,1- b ]-和茚并[1,2 - c ]吡啶-2-酮,从2-吡啶酮开始描述了在优化条件下由原位生成的苯并介导的去质子化剂。按照已开发的方案,获得了罕见的C4a-芳基取代的茚并[2,1- b ]吡啶酮,类似于蒿胺的核心。还描述了直接从2-吡啶酮提供一锅合成的方案。