摘要:
A multi-component reaction of 2-alkynylbenzaldehyde, 4-methylbenzenesulfonohydrazide, carbodiimide, and bromine is reported, which generates 1-(4-bromoisoquinolin-1-yl)guanidines in good yields under mild conditions. The products could be further elaborated via a palladium-catalyzed Suzuki Miyaura coupling reaction, leading to the diverse 1-(isoquiriolin-1-yl)guanidines. (C) 2012 Elsevier Ltd. All rights reserved.