One-pot synthesis of 4-heteroaryl-1,2-dihydro-3-benzazepines from 3,4-dihydroisoquinolinium salts or pseudo bases
作者:Alexander A. Zubenko、Viktor G. Kartsev、Anatolii S. Morkovnik、Ludmila N. Divaeva、Danil V. Alexeenko、Kyrill Yu. Suponitsky、Gennadii S. Borodkin、Alexander I. Klimenko
DOI:10.1016/j.tetlet.2017.02.036
日期:2017.3
novel one-pot synthetic route to the poorly studied 4-heteroaryl-1,2-dihydro-3-benzazepine motif from 3,4-dihydroisoquinolinium compounds is described. The synthetic approach is based on heterocyclic ring expansion of isoquinoline substrates upon reaction with chloromethyl-substituted heterocycles. The scope and limitations of the reaction were investigated to give a series of novel heteroaryl-3-benzazepines