Fe-Catalyzed Difunctionalization of Aryl Titanates Enabled by Fe/Ti Synergism
Yi-Ming Wei1, Xiao-Di Ma1, Meng-Fei Wang1
1College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
Abstract:
Fe-catalyzed difunctionalization of aryl titanates via double C-H activation has been developed, where aryl titanates were arylated via ortho C-H activation, followed by ipso electrophilic trapping of the C-Ti bond. The ortho C-H arylation should be promoted by a 1,2-Fe/Ti synergistic heterobimetallic arylene intermediate and represents an ortho C-H ferration directed by a readily transformable C-Ti group. Common benzamides, esters, and nitriles function as arylating reagents, which involves another ortho C-H activation directed by these functionalities.
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