Mono-functionalization of porous aromatic frameworks to use as compatible heterogeneous catalysts in one-pot cascade reactions

Porous aromatic frameworks (PPAFs) prepared by microwave assisted synthesis can be easily functionalized to obtain solid acid (sulfonic acid) and base (primary amine) catalysts. This porous material demonstrated to be an excellent support of different functional groups. The combination of these func...

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Bibliographic Details
Published in:Applied catalysis. A, General General, 2014-01, Vol.469, p.206-212
Main Authors: MERINO, Estíbaliz, VERDE-SESTO, Ester, MAYA, Eva M, CORMA, Avelino, IGLESIAS, Marta, SANCHEZ, Félix
Format: Article
Language:English
Subjects:
Cascades
Catalysis
Catalysts
Chemistry
Colloidal state and disperse state
Compatibility
Exact sciences and technology
Functional groups
General and physical chemistry
Porous materials
Recycled
Synthesis
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Porous aromatic frameworks (PPAFs) prepared by microwave assisted synthesis can be easily functionalized to obtain solid acid (sulfonic acid) and base (primary amine) catalysts. This porous material demonstrated to be an excellent support of different functional groups. The combination of these functionalized PPAFs was successfully applied as compatible heterogeneous catalysts for cascade reaction of hydrolysis of dimethoxymethylbenzene, acid catalyzed, and Knoevenagel catalyzed by base. The advantages of this catalytic system are its easy synthesis, good catalytic activity, coexistence of incompatible functional groups in homogeneous conditions, with different acid/base ratio, and is recycled up seven times without significant loss of activity. Our concept can be extended to other various one-pot incompatible homogeneous systems and make a contribution toward the creation of environmentally inspired chemical processes through the promotion of multiple reactions in a single reactor.
ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2013.09.052