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.
Selective Introduction of Organic Groups to C60 and C70 Using Organoboron Compounds and Rhodium Catalyst: A New Synthetic Approach to Organo(hydro)fullerenes
A Rh‐catalyzed reaction of C60 and C70 with organoboroncompounds is described. This new catalytic method enables introduction of various organicgroups onto C60 and C70. [Rh(cod)(MeCN)2]BF4 proved to be the most effective catalyst in terms of productivity and selectivity. The reaction generally proceeds with a high regioselectivity and in a mono‐addition selective manner. It was found that water is