Gold-Catalyzed Deacylative Cycloisomerization Reactions of 3-Acylindole/ynes: A New Approach for Carbazole Synthesis
作者:Lu Wang、Guijie Li、Yuanhong Liu
DOI:10.1021/ol2012154
日期:2011.8.5
The synthesis of functionalized carbazoles through gold-catalyzed deacylative cycloisomerization of 3-acylindole/ynes is described. A mechanistic proposal for these transformations involving a novel carbonyl group facilitated heterolytic fragmentation upon the loss of an acylium ion intermediate is presented. The eliminated acylium ion species could be trapped by the organogold intermediate to afford
描述了通过金催化的3-丙烯腈/炔的脱酰基环异构化来合成官能化咔唑的方法。提出了一种针对这些转化的机制建议,其中涉及一种新的羰基基团,可在失去酰基离子中间体后促进杂化断裂。消除的胞嘧啶离子种类可以被有机金中间体捕获,得到酰基咔唑。