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  • Copper-catalyzed oxidative three-component synthesis of N, N',N″-trisubstituted guanidines.

Copper-catalyzed oxidative three-component synthesis of N, N',N″-trisubstituted guanidines.

Organic letters (2013-11-26)
Jihui Li, Luc Neuville
摘要

A copper-catalyzed three-component synthesis of trisubstituted N-aryl guanidines involving cyanamides, arylboronic acids, and amines has been developed. This operationally simple oxidative process, which is performed in the presence of K2CO3, a catalytic amount of CuCl2·2H2O, bipyridine, and oxygen (1 atm), allows the rapid assembly of N,N',N″-trisubstituted aryl guanidines.

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