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Asymmetric hydrodimerization of styrene by a chiral zirconium complex containing a tetradentate [OSSO]-type bis(phenolato) ligand

Paper ID Volume ID Publish Year Pages File Format Full-Text
52198 46866 2011 5 PDF Available
Title
Asymmetric hydrodimerization of styrene by a chiral zirconium complex containing a tetradentate [OSSO]-type bis(phenolato) ligand
Abstract

The chiral non racemic (Λ,R,R)-[OSSO]Zr(CH2Ph)2 (1a) activated by methylaluminoxane (MAO) and in presence of H2 produces the chiral hydrodimer (S)-1,3-diphenylbutane with good selectivity respect to the achiral 1,4-diphenylbutane. The absolute configuration of the chiral dimer and the effect of the hydrogen pressure on the ratio between 1,3-diphenylbutane and 1,4-diphenylbutane give useful information about the regiochemistry and stereochemistry of insertion of the styrene into the Zr–H bond.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Chiral zirconium [OSSO] complex promotes styrene hydrodimerization. ► The stereochemistry and regiochemistry of insertion into the Zr–H bond is elucidated. ► The chiral molecule (S)-1,3-diphenylbutane can be used as chiral building block.

Keywords
Asymmetric catalysis; Carbon–carbon bond formation; Styrene; Zirconium
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Asymmetric hydrodimerization of styrene by a chiral zirconium complex containing a tetradentate [OSSO]-type bis(phenolato) ligand
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 12, 1 July 2011, Pages 1113–1117
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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