Carbon nanotubes-supported palladium nanoparticles for the Suzuki reaction in supercritical carbon dioxide:A facile method for the synthesis of tetrasubstituted olefins

摘要

A facile and efficient method for the synthesis of tetrasubstituted olefins in supercritical carbon dioxide was developed by using carbon nanotubes-supported palladium nanoparticles (Pd/CNTs) as the catalyst.Compared with common Pd/C,Pd/CNTs could more effectively catalyze the reaction of di-bromo-substituted olefins with boronic acids,affording the corresponding tetrasubstituted olefins with moderate to good yields.This environmentally benign route with an easy-to-handle catalyst provides an appealing alternative to the currently available methods.