A Cascade of Acid-Promoted C–O Bond Cleavage and Redox Reactions: From Oxa-Bridged Benzazepines to Benzazepinones
作者:Yuewei Zhang、Fengzhi Yang、Lianyou Zheng、Qun Dang、Xu Bai
DOI:10.1021/ol502971e
日期:2014.12.5
A sequence of C–O bond cleavage and redox reactions in oxa-bridged azepines was realized under acid promoted conditions. This protocol provides an atom-economical and straightforward approach to access benzo[b]azepin-5(2H)-ones in high yields. The formal synthesis of tolvaptan was achieved by exploiting this new transformation.
在酸促进的条件下,在氧杂桥联的ze庚烷中实现了一系列的C–O键断裂和氧化还原反应。该协议提供了一种原子经济且直接的方法,可以高产率获得苯并[ b ] azepin-5(2 H)-。托伐普坦的正式合成是通过利用这一新的转化而实现的。