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Binol derivative ligand immobilized onto silica: Alkyl-cyanohydrin synthesis via sequential hydroformylation/heterogeneous cyanosilylation reactions

Paper ID Volume ID Publish Year Pages File Format Full-Text
54756 47025 2013 8 PDF Available
Title
Binol derivative ligand immobilized onto silica: Alkyl-cyanohydrin synthesis via sequential hydroformylation/heterogeneous cyanosilylation reactions
Abstract

•Immobilization and characterization of BINOL metal complexes onto aminated silica.•Efficient sequential catalytic hydroformylation/cyanosilylation process.•Sequential catalysis allows direct access to high value hydroxyacids, from olefins.

A new 6,6′-dicarboxyl-BINOL type ligand, was synthesized and anchored onto a aminated silica. Full characterization of the solids was carried out by means of thermogravimetry/differential scanning calorimetry, N2 adsorption, infra red and UV–vis diffuse reflectance spectroscopy techniques. Comparative studies between homogeneous versus heterogeneous catalytic cyanosilylation reactions of aldehydes were carried out, and similar activities were obtained. Furthermore, an efficient sequential process to promote the hydroformylation of 1-octene into nonanal followed by in situ cyanosilylation of the aldehyde, catalyzed by titanium immobilized BINOL derivative, is described. Reutilization studies of cyanosilylation catalyst revealed that the new titanium immobilized catalyst could be reused with 25% loss of activity after 3 reuses.

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Keywords
Immobilized catalysts; Sequential catalysis; BINOL metal complexes; Hydroxyacids
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Binol derivative ligand immobilized onto silica: Alkyl-cyanohydrin synthesis via sequential hydroformylation/heterogeneous cyanosilylation reactions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volumes 218–219, December 2013, Pages 99–106
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