sources and 3‐chloroperbenzoic acid (mCPBA) as benign terminal oxidant they catalyze the vicinal diamination of styrenes. The obtained reactivity and selectivity outperform other iodoarene catalyst candidates. This protocol provides a sustainable alternative to previous related protocols for diamination that are based on stoichiometric iodine(III) reagents.
Organophotoredox-Catalyzed Cross-Dehydrogenative Sulfonamidation of Indoles and Other Heterocycles
作者:Aditya Paul、Arunava Sengupta、Somnath Yadav
DOI:10.1021/acs.joc.2c02022
日期:——
The visible light-triggered regioselective synthesis of 2-sulfonamidoindoles and other 2-sulfonamido heteroarenes is accomplished by the oxidative cross-dehydrogenative coupling of indoles (heteroarenes) with di-p-toluenesulfonamide or N-aryl-p-toluenesulfonamides. The reaction was catalyzed by eosin-Y through a photoredox route. Detailed mechanistic studies based on control reactions, cyclic voltammetry