本文報(bào)道了一種催化環(huán)氧化合物與酸酐共聚合的含軟堿配位原子硫的鉻配合物新型催化劑，此類配合物還可以用來(lái)催化環(huán)氧化合物與二氧化碳或者二硫化碳反應(yīng)，相應(yīng)工作正在整理中。
目前的有關(guān)催化劑的設(shè)計(jì)主要是基于含O，N的硬堿原子作為配位原子，本工作拓展了有關(guān)催化劑的設(shè)計(jì)合成思路。
Four new homogeneous chromium complexes with [OSSO]-type bis(phenolato) dianionic ligand catalysts for the ring-opening copolymerization of phthalic anhydride (PA) and epoxides are reported. Through the structure design, the ligand with a cyclohexylene ring backbone of the chromium complexes is quite beneficial to improving the activity. Of all the cocatalysts employed, DMAP is found to be the most efficient.1H NMR spectra of the copolymers confirmed the alternating microstructures. This is the first example of a well-defined metal complex with a soft Lewis base as donor for the efficient copolymerization of anhydride and epoxides. Additionally, we demonstrate that poly(4-VCHO-alt-PA) can be conveniently functionalized using a robust free-radical mediated thiol–ene reaction of the pendant vinyl groups