Polyethylene glycol-functionalized N,P-ligands enhance catalytic properties of cobalt complexes for the hydrosilylation reaction

Abstract

A sequence of polyethylene glycol phosphine ligands with N donor were synthesized and coordinated with Co(BF4)2 to catalyze the hydrosilylation of olefins and silanes. When the amount of catalyst is 0.5 mol% and the temperature is 90 °C, the reaction time is 5 h, the catalytic effect is the best. The catalytic cycle performance was also studied, and it was found that after 8 times, its yield could still reach>90 %.

Keywords

• Polyethylene glycol phosphine ligands with N donor
• Cobalt complexes
• Hydrosilylation