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Ru/ZIF-8 with a chiral modifier for asymmetric hydrogenation of acetophenone

Paper ID Volume ID Publish Year Pages File Format Full-Text
49781 46766 2013 5 PDF Available
Title
Ru/ZIF-8 with a chiral modifier for asymmetric hydrogenation of acetophenone
Abstract

•Ru/ZIF-8 catalysts were prepared by impregnation.•Ru/ZIF-8 catalysts were characterized by XRD, N2 adsorption, ICP and TEM.•Ru/ZIF-8 was efficient and reusable in asymmetric hydrogenation of acetophenone.•Impregnation solvents greatly influenced the catalytic performance of Ru/ZIF-8.

A series of Ru/ZIF-8 (Zeolitic imidazolate framework) catalysts was prepared in the different impregnation solvents and characterized by ICP, XRD, TEM, and N2 adsorption. The obtained catalysts exhibited different catalytic performances in the presence of achiral modifier triphenylphosphine (TPP) and chiral modifier (1S,2S)-1,2-diphenylethylenediamine [(1S,2S)-DPEN] for asymmetric hydrogenation of acetophenone. Ethanol was found to be the most effective impregnation solvent, while low activity and enantioselectivity were observed for water. The prepared Ru/ZIF-8 catalyst was stable and could be reused at least five times without significant loss in activity and entantioselectivity.

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Keywords
ZIF-8; Asymmetric hydrogenation; Acetophenone; Enantioselectivity; Ru
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Ru/ZIF-8 with a chiral modifier for asymmetric hydrogenation of acetophenone
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 42, 5 December 2013, Pages 20–24
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us