Abstract
The solid catalyst with high catalytic activity and enantioselectivity in the hydrolytic kinetic resolution (HKR) of epoxides was prepared by confining Co(Salen) in the nanocage of SBA-16 through reducing the pore entrance size using a silylation method. It was found that the activity of the solid catalysts increased with the number of [Co(Salen)] molecules per nanocage increasing, and the solid catalyst with more than two chiral [Co(Salen)] molecules in one nanocage of SBA-16 exhibits much higher activity and enantioselectivity than the homogeneous [Co(Salen)] catalyst in the HKR of epoxides at low substrate/catalyst ratio. The significantly improved activity of the solid catalyst is due to a high local concentration of [Co(Salen)] in nanospace because of the enhanced cooperative activation effect of [Co(Salen)] molecules.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
