Institut für Anorganische und Analytische Chemie; NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster (Germany).
Angew Chem Int Ed Engl. 2014 Jan 20;53(4):1163-6. doi: 10.1002/anie.201308269. Epub 2013 Dec 11.
The chemistry of N-heterocyclic carbenes (NHCs) is dominated by N,N'-dialkylated or -diarylated derivatives. Such NHC ligands are normally obtained by C2-deprotonation of azolium cations or by reductive elimination from azol-2-thiones. A simple one-step procedure is described that leads to complexes with NH,NH-functionalized NHC ligands by the oxidative addition of 2-halogenoazoles to complexes of zero-valent transition metals.
N-杂环卡宾（NHCs）的化学性质主要由 N，N'-二烷基化或二芳基化衍生物决定。这种 NHC 配体通常通过唑鎓阳离子的 C2 去质子化或从唑-2-硫酮中还原消除得到。本文描述了一种简单的一步法，通过 2-卤代唑与零价过渡金属配合物的氧化加成，得到具有 NH，NH 官能化的 NHC 配体的配合物。
