Microwave-assisted acid-catalyzed nucleophilic heteroaromatic substitution: the synthesis of 7-amino-6-azaindoles
作者:Maxim A. Nechayev、Nikolay Yu. Gorobets、Svetlana V. Shishkina、Oleg V. Shishkin、Sergiy M. Kovalenko
DOI:10.1016/j.tet.2014.12.057
日期:2015.2
Derivatives of 7-amino-6-azaindole containing variable substituent in the amino group were synthesized via acid-catalyzed nucleophilicheteroaromaticsubstitution (SNHetarH+) using 7-chloro-6-azaindoles as substrates and aliphatic and aromatic amines as nucleophiles. The protonation of the pyridine nitrogen in the starting 7-chloro-6-azaindoles is presumed to be the key stage of the reaction mechanism