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Silica Gel Anchored Chiral Mn(III)Salen Complexes for Enantioselective Epoxidation of Unfunctionalised Olefins

✍ Scribed by B.M. Choudary; N. Sreenivasa Chowdari; M. Lakshmi Kantam; P. Lakshmi Santhi


Book ID
110311678
Publisher
Springer US
Year
2001
Tongue
English
Weight
97 KB
Volume
76
Category
Article
ISSN
1011-372X

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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