Synthesis 2019; 51(16): 3101-3108
DOI: 10.1055/s-0037-1611808
paper
© Georg Thieme Verlag Stuttgart · New York

Silver Triflate Catalyzed Synthesis of Isoquinolino[2,1-a]quinazo­lino[3,2-c]quinazoline Derivatives via Alkyne Hydroamination

Wan-Chen Pan
,
Mei-Mei Zhang
,
Jian-Quan Liu*
,
This work was financially supported by NSFC of China (No. 21702078), the NSF of Jiangsu Province (No. BK20170231), and TAPP.
Further Information

Publication History

Received: 26 November 2018

Accepted after revision: 01 April 2019

Publication Date:
24 April 2019 (online)


Abstract

Using 2-(2-aminophenyl)quinazolin-4(3H)-one and 2-(2-phenylethynyl)benzaldehyde as the reactants, silver triflate (AgOTf) was proved to be an efficient catalyst to promote not only quinazoline cyclization, but also the intramolecular hydroamination of alkyne for the synthesis of 6-aryl-17H,18aH-isoquinolino[2,1-a]quinazolino[3,2-c]quinazolin-17-one derivatives in high yields.

Supporting Information