作者:Kostiantyn Liubchak、Kostiantyn Nazarenko、Andrey Tolmachev
DOI:10.1016/j.tet.2012.02.027
日期:2012.4
Structurally diverse annulated benzimidazoles were synthesized via two copper(I)-catalyzed cyclocondensation reactions. In the first case the title compounds were prepared from lactams and o-bromoaniline. An alternative route consisted of an intramolecular cyclization of o-bromoarylamidines.
通过两个铜(I)催化的环缩合反应合成了结构多样的环状苯并咪唑。在第一种情况下,标题化合物由内酰胺和邻溴苯胺制备。替代途径包括邻溴代芳基酰胺的分子内环化。