Method for the Synthesis of 2H-1,4-Benzoxazin-3-(4H)-ones via Ligand-Free Copper-Catalyzed Cascade Reaction
作者:Songlin Zhang、Lingyu Zhang
DOI:10.1055/a-2110-1989
日期:2023.10
An efficient method for the synthesis of 2H-1,4-benzoxazin-3-(4H)-ones via ligand-free copper-catalyzed cascade reaction of substituted chloroacetamides with 2-halophenols has been developed for the first time. Some of the issues typically encountered during the synthesis of 2H-1,4-benzoxazin-3-(4H)-ones, including adding noble metals and ligands, poor substrate scope, have been addressed using this
首次开发了一种通过取代氯乙酰胺与2-卤代酚的无配体铜催化级联反应合成2 H -1,4-苯并恶嗪-3-(4 H )-酮的有效方法。使用这种新开发的无配体铜,可以解决在2 H -1,4-苯并恶嗪-3-(4 H )-one合成过程中通常遇到的一些问题,包括添加贵金属和配体、底物范围差等-催化级联反应。