Bifunctional organoboron-phosphonium catalysts for coupling reactions of CO₂ and epoxides.

ABSTRACT: Recent years have witnessed intensive research activity in exploring novel metal-free organocatalysts for catalyzing the coupling reactions of CO₂ and epoxides to afford cyclic or polymeric carbonates. In this direction, herein we report a series of boron-phosphonium organocatalysts for catalyzing the coupling reactions of CO₂ and epoxides. These organophosphonium catalysts were synthesized in high yields by following a two step protocol involving Menschutkin and hydroboration reactions in succession. The purity of these organocatalysts was confirmed by spectroscopic techniques like ¹H, ¹³C and ³¹P NMR, and molecular structures were confirmed by single crystal X-ray diffraction studies. We have also demonstrated that these bifunctional

SUBMITTER: Sengoden M 

PROVIDER: S-EPMC9661183 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature