Mild, Metal-Free Oxidative Ring-Expansion Approach for the Synthesis of Benzo[<i>b</i>]azepines
作者:Sebastian Stockerl、Tobias Danelzik、Dariusz G. Piekarski、Olga García Mancheño
DOI:10.1021/acs.orglett.9b01433
日期:2019.6.21
Benzo[b]azepines are important structural motifs for the pharmaceutical industry. However, their syntheses are usually lengthy, involving several steps, transition-metal catalysts, and/or harsh conditions. A novel, general, mild, and metal-free oxidative ring expansion tandem reaction of hydroquinolines with TMSCHN2 as a versatile soft nucleophile to gain access to these valuable compounds in a simple and
苯并[ b ] a庚因是制药工业的重要结构基序。然而,它们的合成通常是冗长的,涉及多个步骤,过渡金属催化剂和/或苛刻的条件。提出了一种新颖,通用,温和且无金属的氢喹啉与TMSCHN 2作为通用型软亲核试剂的氧化扩环串联反应,以简单直接的方式获得这些有价值的化合物。