Efficient Pd-catalyzed domino synthesis of 1-phenyl-1H-indol-2-amine and 5-amino-indolo[1,2-a]quinazoline derivatives†
Min Jiang,Haoyue Xiang,Fangxia Zhu,Xing Xu,Lianfu Deng,Chunhao Yang
Organic & Biomolecular Chemistry Pub Date : 09/07/2015 00:00:00 , DOI:10.1039/C5OB01642H
Abstract

An efficient and practical one-pot domino synthesis of 1-phenyl-1H-indol-2-amine and 5-amino-indolo[1,2-a]quinazoline derivatives from readily available 2-(2-bromophenyl)acetonitriles was developed. The overall protocol involves a Buchwald–Hartwig type coupling and a base-promoted intramolecular nucleophilic reaction. The reaction scope, advantages and limitations are discussed.

Graphical abstract: Efficient Pd-catalyzed domino synthesis of 1-phenyl-1H-indol-2-amine and 5-amino-indolo[1,2-a]quinazoline derivatives