catalyst. The reaction proceeds readily in an open flask at room temperature without additional base, ligand, or additive. Rapid access to urea analogues via a two-step one-pot procedure is enabled by reacting N-arylcarbamates with aluminum–amine complexes. In addition, among several boronic acid derivatives prepared, dimethylphenyl boronate was found to react rapidly in its reaction with benzyl azidoformate
N-芳基
氨基甲酸酯的温和有效合成是通过在10 mol%
氯化
铜催化剂存在下使
叠氮基
甲酸酯与
硼酸反应实现的。该反应在室温下在开放烧瓶中容易进行,无需额外的碱,
配体或添加剂。通过使N-芳基
氨基甲酸酯与铝-胺络合物反应,可以通过两步一锅法快速获得
尿素类似物。另外,在制备的几种
硼酸衍
生物中,发现二甲基苯基
硼酸酯在其与
叠氮基
甲酸苄酯的反应中快速反应,从而在催化循环中原位生成该物种。