Synthesis of optically active imidazopyridinium salts and the corresponding NHCs
作者:Michael A. Schmidt、Mohammad Movassaghi
DOI:10.1016/j.tetlet.2006.10.157
日期:2007.1
A convergent synthesis of chiral imidazo-[1,5-a]-pyridinium salts is described by facile introduction of a stereogenic center via the N2 substituent. Conversion of these opticallyactivesalts to the corresponding N-heterocyclic carbenes (NHCs) and their trapping with sulfur followed by optical activity measurements are discussed.
通过经由N 2取代基容易地引入立体异构中心来描述手性咪唑-[1,5- a ]-吡啶鎓盐的会聚合成。讨论了将这些旋光性盐转化为相应的N-杂环卡宾(NHC),并用硫将其捕获,然后进行旋光性测量。