Facile assembly of 1-(4-haloisoquinolin-1-yl)ureas via a reaction of 2-alkynylbenzaldoxime, carbodiimide, and halide in water
作者:Lifang Lai、Huanhuan Wang、Jie Wu
DOI:10.1016/j.tet.2014.02.026
日期:2014.4
1-(4-Haloisoquinolin-1-yl)ureas are generated efficiently via a tandem reaction of 2-allcynylbenzal doxime, carbodiimide, with halide in water. The process involves the generation of halonium ion in situ by employment of Nal/oxone or NaBr/oxone as the promoters. This green process proceeds smoothly and efficiently, accommodating a variety of substituents to generate the desired products. (c) 2014 Elsevier Ltd. All rights reserved.