(η6-Arene)ruthenium(N-heterocyclic carbene) Complexes for the Chelation-Assisted Arylation and Deuteration of Arylpyridines: Catalytic Studies and Mechanistic Insights
作者:Amparo Prades、Macarena Poyatos、Eduardo Peris
DOI:10.1002/adsc.201000049
日期:——
A series of (η6‐arene)ruthenium complexes have been tested in the arylation of arylpyridines. One (η6‐p‐cymene)ruthenium(N‐heterocyclic carbene) complex (labelled as 1 in the text) was found to be the most effective, being capable of arylating a wide set of substantially different arylpyridines. Complex 1 is also able to promote the regioselective deuteration of a series of arylated N‐heterocycles
一系列的(η 6 -arene)钌配合物在芳基吡啶的芳基化了测试。酮(η 6 - p -cymene)钌(N-杂环卡宾)复合物(标记为1的文本)被发现是最有效的,能够芳基化的宽组基本上不同的芳基吡啶的的。复合物1还能够通过氮导向机制促进一系列芳基化N杂环的区域选择性氘化。氘代胺中的两种用于测量芳基化过程中的动力学同位素效应(KIE)。逆KIE的检测,与观察到的C一起H活化过程不需要添加碱,表明芳构化过程中的限速步骤可能与先前报道的研究不同。