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Regioselective hydroformylation of vinyl esters catalyzed by Rh(acac)(CO)2 with simple and efficient diphosphinite ligands

Paper ID Volume ID Publish Year Pages File Format Full-Text
50166 46783 2014 4 PDF Available
Title
Regioselective hydroformylation of vinyl esters catalyzed by Rh(acac)(CO)2 with simple and efficient diphosphinite ligands
Abstract

•An efficient protocol for hydroformylation of vinyl acetate was explored.•Used diphosphinite ligand was more active and selective then conventional ligands.•Various aliphatic, aromatic and higher vinyl esters were well tolerated.•Good conversion, excellent regio- and chemo-selectivity with high TON were achieved.

Simple and efficient diphosphinite ligands were evaluated in rhodium catalyzed hydroformylation of vinyl acetate. The effect of various reaction variables like temperature, pressure, substrate/Rh ratio, P/Rh ratio, solvents, time and different types of phosphorous ligands were studied. The diphosphinite ligand exhibited a considerable impact on the hydroformylation of vinyl esters and provided good turnover number (up to 10,000) with excellent regioselectivity (99%) to branched aldehyde. Wide range of vinyl esters including long chain aliphatic vinyl esters (up to C18) were well tolerated to provide good to excellent yield of desired product.

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Keywords
Hydroformylation; Vinyl esters; Diphosphinite ligand; Regioselective; Homogeneous catalysis
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Regioselective hydroformylation of vinyl esters catalyzed by Rh(acac)(CO)2 with simple and efficient diphosphinite ligands
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 46, 10 February 2014, Pages 109–112
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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