作者:Pierre Thilmany、Phidéline Gérard、Agathe Vanoost、Christopher Deldaele、Laurent Petit、Gwilherm Evano
DOI:10.1021/acs.joc.8b02284
日期:2019.1.4
A set of two broadly applicable procedures for the N-arylation of hydantoins is reported. The first one relies on the use of stoichiometric copper(I) oxide under ligand- and base-free conditions and enables a clean regioselective arylation at the N3 nitrogen atom, while the second one is based on the use of catalytic copper(I) iodide and trans-N,N′-dimethylcyclohexane-1,2-diamine and promotes arylation
报道了一组两种广泛适用的乙内酰脲的N-芳基化方法。第一个依靠在无配体和无碱条件下使用化学计量的氧化铜(I),并能够在N 3氮原子处实现干净的区域选择性芳基化,而第二个则基于催化铜(I)的使用碘化物和反式- ñ,ñ 'N'-二甲基乙烷-1,2-二胺和在N-芳基化促进1氮原子。重要的是,这两种方法的结合提供了直接进入二酰化乙内酰脲的方法。