作者:Ting Yang、Leonie Campbell、Darren J. Dixon
DOI:10.1021/ja074550+
日期:2007.10.1
reported. The gold catalyst initially primes the alkynoic acid, via cyclization to an enol lactone, to react with a primary amine tethered to an electron rich heteroaromatic system. Then, via postulated Lewis acid assisted acidity, the Au(I) catalyst activates the amido ketone intermediate to undergo an N-acyl iminium ion cyclization. The reaction sequence is simple to perform, efficient, and broad in
报道了从炔酸和伯胺到多环杂环产物的一锅 Au(I) 催化反应级联反应。金催化剂首先引发炔酸,通过环化生成烯醇内酯,与连接到富电子杂芳族系统的伯胺反应。然后,通过假定的路易斯酸辅助酸度,Au(I) 催化剂激活酰氨基酮中间体以进行 N-酰基亚胺离子环化。该反应序列操作简单、效率高,并且适用于各种复杂的杂环产物。