Robust Acenaphthoimidazolylidene Palladacycles: Highly Efficient Catalysts for the Amination of N-Heteroaryl Chlorides
作者:Qinyue Deng、Yang Zhang、Haibo Zhu、Tao Tu
DOI:10.1002/asia.201700877
日期:2017.9.19
A series of robust N‐heterocyclic carbene palladacycles have been successfully developed. These showed high catalytic activity and selectivity toward the challenging amination of N‐heteroaryl chlorides. Different primary and secondary amines were fully compatible with this catalytic system. Remarkably, no double amination products could be detected when primary amines were utilized in our catalytic
Carbene adduct of cyclopalladated ferrocenylimine-assisted synthesis of aminopyridine derivatives by the amination of chloropyridines with primary and secondary amines
作者:Bing Mu、Jingya Li、Yangjie Wu
DOI:10.1002/aoc.3026
日期:2013.9
on Buchwald–Hartwig aminations. Using 1 mol% N‐heterocyclic carbene adduct of cyclopalladated ferrocenylimine in the presence of 1.5 equiv. tBuOK as base in dioxane at 110°C offered moderate to excellent yields in the reaction of chloropyridines with primary and secondaryamines, including sterically hindered amines and alkyl amines.
Hypervalent Iodine(III) in Direct Oxidative Amination of Arenes with Heteroaromatic Amines
作者:Srimanta Manna、Polina O. Serebrennikova、Irina A. Utepova、Andrey P. Antonchick、Oleg N. Chupakhin
DOI:10.1021/acs.orglett.5b02320
日期:2015.9.18
coupling of electron-rich arenes with amino derivatives of electron-deficient heterocycles providing rapid access to scaffolds of bioactive compounds and is based on the application of the hypervalent iodine(III) reagent as an oxidant. Regioselective functionalization of C–H bonds of arenes by the formation of C–N bonds under organocatalytic conditions was demonstrated.