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Enantioselective epoxidation of unfunctionalized olefins catalyzed by chiral salen Mn(III) catalyst immobilized on zirconium oligostyrenylphosphonate-phosphate

✍ Scribed by Wenshan Ren; Xiangkai Fu; Hebin Bao; Ruofei Bai; Pingping Ding; Binglin Sui


Book ID
118426904
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
489 KB
Volume
10
Category
Article
ISSN
1566-7367

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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