The first metal-free, efficient TBAI-catalyzed radical addition/cyclization of diaryl(arylethynyl)phosphine oxides with toluene derivatives has been developed, affording a general, one-step approach to structurally sophisticated benzo[b]phosphole oxides via sequential C–H functionalization along with the formation of two new C–C bonds.
![Graphical abstract: TBAI-catalyzed oxidative C–H functionalization: a new route to benzo[b]phosphole oxides](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C5CC09263A&imageInfo.ImageIdentifier.Year=2016)
Y. Zhang, G. Hu, D. Ma, P. Xu, Y. Gao and Y. Zhao, Chem. Commun., 2016, 52, 2815 DOI: 10.1039/C5CC09263A
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