Duan, Tong; Tong, Haoying; LI, ZHENJIANG; He, Jun; Liu, Bo - 2022
Metal- and halide-free catalyst DABCO·HSac, i.e. the binary adduct of 1,4-diazabicyclo[2.2.2]octane (DABCO) and saccharin (HSac), in an ionic pair structure of DABCO-H⁺·Sac⁻ is shown mild and efficient in promoting the cycloaddition of CO 2 into epoxides (CCE) reactions. Under...