Electronic and steric effects on the intramolecular Schmidt reaction of alkyl azides with secondary benzyl alcohols
作者:Xiaowei Sun、Chengzhe Gao、Fan Zhang、Zhuang Song、Lingyi Kong、Xiaoan Wen、Hongbin Sun
DOI:10.1016/j.tet.2013.11.098
日期:2014.1
The intramolecular Schmidt reaction of simple azido secondary benzyl alcohols has been realized for the first time. Investigation of the electronic and steric effects of the substrates on the product outcome was conducted. Unique intramolecular Schmidt rearrangements were observed with the formation of a cinnamaldehyde derivative and aryl aldehydes, respectively. Using this protocol, an efficient synthesis
简单的叠氮基仲苄醇的分子内Schmidt反应已首次实现。研究了底物对产品结果的电子和空间效应。观察到独特的分子内施密特重排,分别形成肉桂醛衍生物和芳基醛。使用该协议,实现了二氢苯并三嗪衍生物的有效合成。此外,还获得了一种用于2-芳基-1-吡咯啉的实用方法。