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Asymmetric Epoxidation of Allyl Alcohol on Organic–Inorganic Hybrid Chiral Catalysts Grafted onto the Surface of Silica and in the Mesopores of MCM‐41
Author(s) -
Xiang Song,
Zhang Yiliang,
Xin Qin,
Li Can
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020301)41:5<821::aid-anie821>3.0.co;2-a
Subject(s) - catalysis , mesoporous material , hybrid material , chemistry , mesoporous silica , tartaric acid , heterogeneous catalysis , enantioselective synthesis , organic chemistry , homogeneous , chemical engineering , materials science , engineering , physics , citric acid , thermodynamics
A heterogeneous version of the Sharpless epoxidation : a chiral tartaric acid derivative is grafted onto the surface of silica and in the mesopores of MCM‐41 (see picture). The hybrid chiral catalyst is as effective as the homogeneous complex in terms of turnover number and enantioselectivity, and the product is easily separated by simple filtration.