Ti-Promoted Pd- and Fe-Catalyzed Regiodivergent C-H Arylation of Pyridines
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We report a practical, regiodivergent C-H arylation of pyridines. In the presence of Ti-1·2(TMPMgCl·LiCl), diverse 2- or 3-substituted pyridines undergo Pd-catalyzed C6-H arylation under mild conditions, overriding the classical ortho-directing effects. In c... ...
