Title: Metal-triflate ionic liquid systems immobilized onto mesoporous MS41 materials as new and efficient catalysts for N-acylation
Authors: Coman, Simona M ×
Florea, Mihaela
Parvulescu, Vasile I
David, Victor
Medvedovici, Andrei
De Vos, Dirk
Jacobs, Pierre
Poncelet, George
Grange, Paul #
Issue Date: Jul-2007
Publisher: Academic Press
Series Title: Journal of Catalysis vol:249 issue:2 pages:359-369
Conference: date:Univ Bucharest, Fac Chem, Dept Chem Technol & Catalysis, Bucharest 70346, Romania; Univ Bucharest, Fac Chem, Dept Analyt Chem, Bucharest 70436, Romania; Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, B-3001 Heverlee, Belgium; Univ Catholique Louvain, Unite Catalyse & Chim Mat Divises, B-1348 Louvain, Belgium
Abstract: Two kinds of MS41-immobilized ionic liquids (ILs) based on dihydroimidazolium and pyridinium cation were prepared using a grafting method. The second immobilization of triflate salts on these materials led to the immobilization of metal-triflate complexes into ILs. The materials thus obtained were characterized by H-1 NMR, XRD, N-2-sorption measurements, TG-DTA, DRIFT, XPS, TEM, and ICP-AES. The catalysts were tested in acylation of amines and sulfonamides and proved highly active and selective. For both aromatic and aliphatic amines, acylation with carboxylic acids was possible. For sulfonamides, acylation was possible only with anhydrides. Recycling the catalysts was not accompanied by any leaching of ILs or metal triflate. (C) 2007 Elsevier Inc. All rights reserved.
ISSN: 0021-9517
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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