The reaction kinetics of hydrolysis resolution of racemic epichlorohydrin to chiral chloropropandiol and optically active epichlorohydrin, catalyzed by chiral salen metal complexes, was studied by using gas chromatogr...The reaction kinetics of hydrolysis resolution of racemic epichlorohydrin to chiral chloropropandiol and optically active epichlorohydrin, catalyzed by chiral salen metal complexes, was studied by using gas chromatography. The effects of temperature, catalyst type and catalyst concentration on the reaction rate were explored. On the experimental results, some kinetic regularity for the reaction has been obtained.展开更多
Jacobsen’s catalyst was immobilized onto SBA-15 by multi-step grafting, and this new heterogenized catalyst exhibited comparable catalytic performance with the corresponding homogeneous counterpart for the epoxidatio...Jacobsen’s catalyst was immobilized onto SBA-15 by multi-step grafting, and this new heterogenized catalyst exhibited comparable catalytic performance with the corresponding homogeneous counterpart for the epoxidation of alkenes.When NH4OAc were used as cocatalyst both yields and ee’s were higher than that of without co catalyst.展开更多
文摘The reaction kinetics of hydrolysis resolution of racemic epichlorohydrin to chiral chloropropandiol and optically active epichlorohydrin, catalyzed by chiral salen metal complexes, was studied by using gas chromatography. The effects of temperature, catalyst type and catalyst concentration on the reaction rate were explored. On the experimental results, some kinetic regularity for the reaction has been obtained.
文摘Jacobsen’s catalyst was immobilized onto SBA-15 by multi-step grafting, and this new heterogenized catalyst exhibited comparable catalytic performance with the corresponding homogeneous counterpart for the epoxidation of alkenes.When NH4OAc were used as cocatalyst both yields and ee’s were higher than that of without co catalyst.
