CO2 insertion into epoxides using cesium salts as catalysts at ambient pressure†
Abstract
Cesium salts (Cs2CO3, CsCl, and CsNO3) were used for the coupling of CO2 and epoxides. These salts are highly active catalysts for the formation of cyclic carbonates from epoxides and CO2 at ambient pressure (1 bar). The reaction proceeds with high conversions up to 100% and turnover numbers (TONs) up to 97 × 103.