Iron-Catalyzed Arene C–H Amidation Using Functionalized Hydroxyl Amines at Room Temperature
作者:A. V. G. Prasanthi、Samiyara Begum、Hemant Kumar Srivastava、Sandip Kumar Tiwari、Ritesh Singh
DOI:10.1021/acscatal.8b02939
日期:2018.9.7
Herein, we report Fe(III)(TPP)Cl as an effective catalyst for promoting arene C–H amidation throughintramolecular cyclization of N-tosyloxyarylcarbamate substrates. The reaction proceeds via nitrene (outer sphere pathway) C(sp2)–H insertion to yield benzoxazolones under external-oxidant-free conditions at ambient temperature. The method is operationally simple and scalable with high-functional-group