Dimers are a girl's best friend: The title reaction allows the formation of single‐bonded fullerenedimers with extremely high chemical yield and high compatibility with various functional groups, which are highly soluble in organic solvents. The use of Cu(OAc)2 catalyst with dimethylformamide or acetonitrile as additives under air is the critical factor in achieving the highlyefficient catalytic
Cu-Catalyzed C–H Amination of Hydrofullerenes Leading to 1,4-Difunctionalized Fullerenes
作者:Weili Si、Shirong Lu、Ming Bao、Naoki Asao、Yoshinori Yamamoto、Tienan Jin
DOI:10.1021/ol403573r
日期:2014.1.17
A novel and highly efficient Cu-catalyzed C-H amination of the monofunctionalized hydrofullerenes for the synthesis of 1,4-difunctional fullerenes has been reported. A new series of 1,4-fullerene derivatives having various monoamine addends were synthesized in good to high yields under mild reaction conditions. The controlled experiments revealed that the reaction proceeds through the formation of a fullerene monoradical as a key intermediate followed by coupling with an amine radical.