Direct use of CO2 for O-arylcarbamate synthesis via mild Cu(II)-catalyzed aerobic C-H functionalization in pincer-like macrocyclic systems
作者:Elise Bernoud、Anna Company、Xavi Ribas
DOI:10.1016/j.jorganchem.2017.02.004
日期:2017.9
Cu(II)-catalyzed C-H functionalization for the synthesis of O-arylcarbamates in a model pincer-like arene substrate using CO2 gas as C1-synthon is shown to proceed via aryl-Cu(III) intermediate species at room temperature. Indeed, stoichiometric experiments have been performed starting from an isolated Cu(III) complex and carbamic ammonium salts. A catalytic version has been then developed using a
Cu(II)催化的CH官能化,用于在模型钳形的芳烃基质中使用CO 2气体作为C1-合成子合成O-芳基氨基甲酸酯,该反应在室温下通过芳基-Cu(III)中间物种进行。实际上,已经从分离的Cu(III)配合物和氨基甲酸铵盐开始进行了化学计量的实验。然后使用芳烃模型底物和通过CH活化的Cu(II)盐开发了催化形式。最后,通过从胺和CO 2气体原位生成氨基甲酸酯可实现有效的Cu(II)催化的CH官能化。