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Hydrogenation of α-enaminoketones with cobalt phosphine-modified catalysts ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
50562 46802 2013 5 PDF Available
Title
Hydrogenation of α-enaminoketones with cobalt phosphine-modified catalysts ☆
Abstract

The synthesis of α-enamines and hydrogenation of these compounds were studied using cobalt-modified complexes. Cobalt complexes were characterized by 1H, 13C and 31P NMR, elemental analysis and IR spectroscopy. Furthermore, the molecular structures of complexes C1–C2 and C4–C5 have been determined by single-crystal X-ray diffraction. All cobalt complexes investigated were active catalysts for the hydrogenation reaction. The best catalytic activity was obtained with an ortho-substituent in the phosphine ligand. Noteworthy, the reduction was chemoselective over the double bond.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The first example of catalytic hydrogenation of α-enamino-ketones with L(CO)3Co–Co(CO)3L ► Good yields of secondary α-amine-ketones were obtained. ► Completely chemo selective reaction ► Ortho-substituted phosphines gave the best results.

Keywords
Dicobalt octacarbonyl; Enamines; Homogeneous catalysis; Hydrogenation; Aminoketones
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Hydrogenation of α-enaminoketones with cobalt phosphine-modified catalysts ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 33, 5 March 2013, Pages 29–33
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us