Chiral (Salen) Complexes Encapsulated in Mesoporous ZSM-5 as an Optical Active Catalyst for Asymmetric Phenolic Ring Opening of Terminal Epoxides
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Published:2007-06
Issue:
Volume:124-126
Page:1809-1812
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ISSN:1662-9779
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Container-title:Solid State Phenomena
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language:
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Short-container-title:SSP
Author:
Lee Kwang Yeon1,
Lee Young Hee1,
Shin Chang Kyo1,
Kim Geon Joong1
Abstract
ZSM-5 was modified by alkaline and acidic solution to introduce mesoporosity
in the crystals. Heterogenized Co(III) salen was prepared in the mesopores of ZSM-5 by
‘ship-in-a-bottle’ method. Phenolic ring opening of epoxides was performed successfully
by using encapsulated chiral salen catalysts. Very high enantioselectivity and conversion
were obtained in PKR reaction by immobilized catalysts.
Publisher
Trans Tech Publications, Ltd.
Subject
Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics