Hairy particle-supported 4-N,N-dialkylaminopyridine: An efficient and recyclable nucleophilic organocatalyst

A polymer brush‐supported 4‐N,N‐dialkylaminopyridine catalyst was prepared by surface‐initiated nitroxide‐mediated polymerization from initiator functionalized crosslinked polystyrene particles. The hairy particles efficiently catalyzed the acylation of secondary alcohols and Baylis‐Hillman reaction...

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Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2008-05, Vol.46 (10), p.3438-3446
Main Authors: Zhao, Bin, Jiang, Xiaoming, Li, Dejin, Jiang, Xueguang, O'Lenick, Thomas G, Li, Bing, Li, Christopher Y
Format: Article
Language:English
Subjects:
Applied sciences
catalysis
catalysts
Exact sciences and technology
living polymerization
Organic polymers
Physicochemistry of polymers
Properties and characterization
radical polymerization
Special properties (catalyst, reagent or carrier)
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Summary:A polymer brush‐supported 4‐N,N‐dialkylaminopyridine catalyst was prepared by surface‐initiated nitroxide‐mediated polymerization from initiator functionalized crosslinked polystyrene particles. The hairy particles efficiently catalyzed the acylation of secondary alcohols and Baylis‐Hillman reaction of 4‐nitrobenzaldehyde and methyl vinyl ketone, and were recycled at least six times with no or negligible decrease in the reaction yield.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.22681