Combined C-H Functionalization/C-N Bond Formation Route to Carbazoles
W. C. Peter Tsang, Nan Zheng and Stephen L. Buchwald*
*Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, Email: sbuchwalmit.edu
W. C. P. Tsang, N. Zheng, S. L. Buchwald, J. Am. Chem. Soc., 2005, 127, 14560-14561.
DOI: 10.1021/ja055353i (free Supporting Information)
A palladium-catalyzed tandem directed C-H functionalization and amide arylation gave a series of substituted carbazoles. The Pd(0) species generated are reoxidized to Pd(II) in the presence of Cu(OAc)2 and an atmosphere of oxygen.
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