作者:Laura Fra、Alba Millán、José A. Souto、Kilian Muñiz
DOI:10.1002/anie.201402661
日期:2014.7.7
preparation of indoles has been developed. This process is based on sterically congested hypervalent iodine compounds of the family of Koser reagents, and iodosobenzene in combination with 2,4,5‐tris‐isopropylbenzene sulfonic acid provides the highest yields and fastest reaction times. This reagent alone promotes the chemoselective oxidative cyclization of 2‐amino styrenes to indoles in high yields
已经开发出一种新的无金属方法,用于快速有效地制备吲哚。此过程基于Koser试剂系列的空间拥挤的高价碘化合物,碘代苯与2,4,5-三-异丙基苯磺酸的组合可提供最高的收率和最快的反应时间。在温和的条件下,仅此试剂就可以促进高产率地将2-氨基苯乙烯化学选择性氧化环化为吲哚。