作者:Patricia L. Minin、John C. Walton
DOI:10.1021/jo034002o
日期:2003.4.1
The 2-(2-isocyanatophenyl)ethyl radical was generated from the corresponding bromide with tributyltin and tris(trimethylsilyl)silyl radicals and shown to ring close in the 6-endo-mode to afford 3,4-dihydro-1H-quinolin-2-one as the major product. Cyclization in the 5-exo-mode to produce 2,3-dihydroindole-1-carbaldehyde, after hydrogen abstraction, was a minor reaction. Rate constants for the two processes
由具有三丁基锡和三(三甲基甲硅烷基)甲硅烷基的相应溴化物生成2-(2-异氰酸根合苯基)乙基,并显示在6-内位模式闭环生成3,4-二氢-1H-喹啉2 -一个作为主要产品。在夺氢后,在5-exo-模式下生成2,3-二氢吲哚-1-甲醛的环化反应是次要的反应。估计两个过程的速率常数,并将其与通过DFT方法计算的反应焓进行比较。