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Durability enhancement of chirally modified metallic nickel catalysts for enantioselective hydrogenation

Paper ID Volume ID Publish Year Pages File Format Full-Text
50740 46812 2011 3 PDF Available
Title
Durability enhancement of chirally modified metallic nickel catalysts for enantioselective hydrogenation
Abstract

Metallic Ni catalysts co-modified with (R,R)-tartaric acid and NaBr showed high enantioselectivity and durability upon hydrogenation of methyl acetoacetate to give methyl 3-hydroxybutyrate. The chirally modified catalyst prepared from 3-μm Ni powder was highly robust to maintain the hydrogenation activity and enantiodifferentiating ability for ca. 3 months under dry condition, which enables long-term storage and hence facilitates commercial distribution and industrial application.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Metallic 3-μm nickel powder catalyst modified with (R,R)-tartaric acid and NaBr. ► Modified catalyst afforded up to 84% ee in the hydrogenation of methyl acetoacetate. ► The dried catalyst was robust and kept the high enantioselectivity for 84 days.

Keywords
Modified metallic nickel; Enantioselective hydrogenation; Durability; Methyl acetoacetate; Tartaric acid
First Page Preview
Durability enhancement of chirally modified metallic nickel catalysts for enantioselective hydrogenation
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 15, Issue 1, 15 November 2011, Pages 15–17
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis