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Title: N-Heterocyclic Carbenes Supported on Vinylic Addition Polynorbornene: A Recyclable and Recoverable Organocatalyst
Authors: Molina de la Torre, Jesús A.
Albéniz Jiménez, Ana Carmen
Issue Date: 2014
Publisher: Wiley
Description: Producción Científica
Citation: ChemCatChem, 2014, Volume 6, Issue 12, p. 3547–3552
Abstract: A bromoalkyl functionalized vinylic addition polynorbornene has been used as an inert new scaffold to support imidazolium salts by straightforward nucleophilic substitution using different imidazoles ImR (R=Me, mesityl, 2,6-iPr2C6H3). These polymers, VA-PNB-(CH2)4ImRBr, are precursors of N-heterocyclic carbenes which are useful as heterogeneous organocatalysts. The polymeric carbenes have been tested in two model reactions: The synthesis of saturated esters from α,β-unsaturated aldehydes and the conjugate umpolung reaction of α,β-unsaturated aldehydes for the synthesis of γ-butyrolactones. The supported catalyst (R=mesityl) is fully recyclable and can be recovered as an imidazolium salt and stored for further use.
Keywords: Chemistry
ISSN: 1867-3880
Peer Review: SI
DOI: 10.1002/cctc.201402767
Sponsor: Ministerio de Economía, Industria y Competitividad (CTQ2013-48406-P)
Ministerio de Economía, Industria y Competitividad (CTQ2010-18901/BQU)
Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA302U13)
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:CINQUIMA - Artículos de revista
DEP63 - Artículos de revista

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