RT info:eu-repo/semantics/article
T1 N-Heterocyclic Carbenes Supported on Vinylic Addition Polynorbornene: A Recyclable and Recoverable Organocatalyst
A1 Molina de la Torre, Jesús Ángel
A1 Albéniz Jiménez, Ana Carmen
K1 Chemistry
K1 Catalysts
AB 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.
PB Wiley
SN 1867-3880
YR 2014
FD 2014
LK http://uvadoc.uva.es/handle/10324/21742
UL http://uvadoc.uva.es/handle/10324/21742
LA eng
NO ChemCatChem, 2014, Volume 6, Issue 12, p. 3547–3552
NO Producción Científica
DS UVaDOC
RD 22-nov-2024