A Pd(II) catalyst for the hydroarylation of fullerene with boronic acids is presented. Treatment of C-60 with an arylboronic acid in the presence of a catalytic amount of Pd(2-PyCH=NPh)(OCOC6F5)(2) in H2O/1,2-Cl2C6H4 at room temperature furnishes the hydroarylation product (Ar-C-60-H) in good yield with high selectivity. This complex possesses high catalytic activity paired with bench stability in the solid state.
Rh-Catalyzed Arylation and Alkenylation of C<sub>60</sub> Using Organoboron Compounds
作者:Masakazu Nambo、Ryoji Noyori、Kenichiro Itami
DOI:10.1021/ja073042x
日期:2007.7.1
A new organoboron-based arylation and alkenylation of C-60 catalyzed by a rhodium complex was developed. A treatment of C-60 with an organoboron compound in the presence of a catalytic amount of [Rh(cod)(CH3CN)(2)]BF4 in H2O/1,2-Cl2C6H4 furnished a functionalized fullerene (R-C-60-H) with good to excellent selectivity. Aryl, heteroaryl, and alkenyl groups can be installed by the reactions using the corresponding boronic acids, pinacol esters, and potassium trifluoroborates.