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

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 degrees 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 %.(c) 2023 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Automated summary

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