Introduction of bulky tert-butyl substituents on the core of N,N′-diaryl N-heterocyclic carbenes through the corresponding vicinal diamines
作者:Ulrich Jacquemard、Phoebe Harpainter、Sylvain Roland
DOI:10.1016/j.tetlet.2013.06.132
日期:2013.8
Highly bulky N,N′-diaryl imidazolinium salts substituted by one or two tert-butyl groups on the heterocyclic backbone and the corresponding silver N-heterocyclic carbene complexes are obtained by the addition of tert-butyl magnesium chloride or tert-butyl lithium on symmetrical 1,2-bisimines derived from 2,6-diisopropylaniline, 2,6-diethylaniline and 2,4,6-trimethylaniline.
通过在对称骨架上添加叔丁基氯化镁或叔丁基锂,可以得到在杂环主链上被一个或两个叔丁基取代的高度庞大的N,N'-二芳基咪唑啉盐和相应的N-杂环卡宾银配合物衍生自2,6-二异丙基苯胺,2,6-二乙基苯胺和2,4,6-三甲基苯胺的1,2-二亚胺。