Copper(II) catalyzed iodine-promoted oxidative cyclization of 2-amino-1,3,5-triazines and chalcones: synthesis of aroylimidazo[1,2-a][1,3,5]triazines

2017 
An efficient copper(II) catalyzed iodine-promoted synthesis of aroylimidazo[1,2-a][1,3,5]triazines from 2-amino-1,3,5-triazines and chalcones under mild conditions has been developed. The reaction occurred with good yields and excellent regioselectivities, and tolerated chalcone containing functionalities such as ethers, halogens, and nitro groups. The successful application of this methodology for a gram-scale reaction indicates its potential for bulk synthesis.
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