Development of a convoluted polymeric nanopalladium catalyst: α-alkylation of ketones and ring-opening alkylation of cyclic 1,3-diketones with primary alcohols
作者:Yoichi M.A. Yamada、Yasuhiro Uozumi
DOI:10.1016/j.tet.2007.05.071
日期:2007.8
A novel solid-phase catalyst of palladium nanoparticles, nano-Pd-V, was prepared from PdCl2 with main-chain viologen polymersviacomplexation and reduction. This insoluble nanocatalyst nano-Pd-V efficiently promoted α-alkylation of ketones with primary alcohols in the presence of Ba(OH)2·H2O under atmospheric conditions without organic solvents. The nano-Pd-V catalyst was reused without loss of catalytic