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Highly enantioselective epoxidation of olefins by Mn(III) salen complex immobilized on MCM-48

✍ Scribed by Kai Yu; Lan-Lan Lou; Fei Ding; Shengjie Wang; Zhilong Wang; Shuangxi Liu


Book ID
119215463
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
98 KB
Volume
7
Category
Article
ISSN
1566-7367

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Enantioselective epoxidation of olefins
✍ Xiaoquan Yao; Huilin Chen; Weiran LΓΌ; Guizhi Pan; Xinquan Hu; Zhuo Zheng πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 French βš– 62 KB

Two novel chiral poly-salen-Mn(III) complexes 1 and 2, derived from (R,R)-1,2-diaminocyclohexane and the disalicylaldehydes 5 and 6 were synthesized and employed in the enantioselective epoxidation of olefins. A range of 30-92% ee and 75-97% yield was achieved in NaClO/4-PPNO and m-CPBA/NMO oxidant