We report mesityllithium and p-(dimethylamino)phenyllithium as new valuable lithiating reagents, which realize Br/Li exchange reaction of bromoarenes at relatively high temperature in THF. With these reagents, we established the general and practical protocols for the selective alternate trilithiation of the hexaphenylbenzene framework.
T. Kojima and S. Hiraoka, Chem. Commun., 2014, 50, 10420 DOI: 10.1039/C4CC04520C
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