A new method for the "ligation" of two aromatic rings has been achieved via synthesis of functionalized phenazines by double Buchwald-Hartwig cyclization of a variety of substituted bromoanilines.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3882093PMC
http://dx.doi.org/10.3987/COM-11-S(P)76DOI Listing

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