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An Efficient One-Pot Multicomponent Synthesis of Tetracyclic Quinazolino[4,3-b]quinazolines by Sequential C–N Bond Formation and Copper-Mediated Aerobic Oxidative Cyclization
2018
Synlett : Accounts and Rapid Communications in Synthetic Organic Chemistry
Preserved Fulltext
An efficient one-pot synthesis of quinazolino[4,3-b]quinazoline derivatives has been accomplished, starting from 2-(2-bromophenyl)quinazolin-4(3H)-one, aldehydes, and various nitrogen sources under aerobic conditions. The multicomponent protocol is mediated by copper(I) salts and involves amination of 2-(2-bromophenyl)quinazolin-4(3H)-one, followed by condensation with the aldehyde and an oxidative cyclization to give the target compounds in moderate to good yields.
doi:10.1055/s-0036-1591578
fatcat:x6j42t6kdjer5pnsqgv76zhwra