Copper and manganese co-mediated cascade aza-Michael addition/cyclization and azidation of 1,3-enynes: regioselective synthesis of fully substituted azido pyrroles
An efficient Cu and Mn co-mediated aerobic oxidative cyclization and azidation reaction of 1,3-enynes with amines and trimethylsilyl azide (TMSN3) for the synthesis of fully substituted azido pyrroles has been developed. The three-component reaction has the characteristics of high regioselectivity, wide substrate scope, and mild reaction conditions. A preliminary mechanism for this transformation is
开发了一种有效的 Cu 和 Mn 共介导的好氧氧化环化和叠氮化反应,用于合成完全取代的叠氮基吡咯的 1,3-烯炔与胺和三甲基甲硅烷基叠氮化物 (TMSN 3 )。三组分反应具有区域选择性高、底物范围广、反应条件温和等特点。提出了这种转变的初步机制。
Manganese-Mediated Electrochemical Dearomatization of Indoles To Access 2-Azido Spirocyclic Indolines
作者:Kangdong Mo、Xiaocong Zhou、Ju Wu、Yufen Zhao
DOI:10.1021/acs.joc.2c02017
日期:2022.12.2
developed, delivering a series of azido-containing spirocyclicindolines with good functional group tolerance. This dearomatization process is proposed to result from the oxidation of MnII–N3 species, supported by cyclic voltammetry experiments. Moreover, synthetic transformations can provide an alternative approach to a range of functionalized indolines.
开发了一种高效且环保的吲哚脱芳构化电化学方案,提供了一系列具有良好官能团耐受性的含叠氮基的螺环二氢吲哚。该脱芳构化过程被认为是由 Mn II –N 3物种的氧化引起的,并得到循环伏安法实验的支持。此外,合成转化可以为一系列功能化二氢吲哚提供替代方法。
Metal-free C3 α-aminoalkylation of quinoxalin-2(1H)-ones with amines