Covalently tethered borane–oxyanion organocatalysts enable highly efficient ring-opening copolymerization of epoxides and cyclic anhydrides via intramolecular cooperation, achieving turnover frequencies up to 13,500 h−1 and high molecular weights up to 174.0 kDa. These catalysts feature air stability, broad substrate scope, thermal stability and metal-free polyester production.
- Ximin Feng
- Xiong Liu
- Xinghong Zhang
