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Organic-inorganic supramolecular solid catalyst boosts organic reactions in water

AutorGarcía-García, Pilar; Moreno, José María; Díaz Morales, Urbano; Bruix, M. ; Corma, Avelino
Fecha de publicación2016
EditorNature Publishing Group
CitaciónNature Communications 7: 10835 (2016)
ResumenCoordination polymers and metal-organic frameworks are appealing as synthetic hosts for mediating chemical reactions. Here we report the preparation of a mesoscopic metal-organic structure based on single-layer assembly of aluminium chains and organic alkylaryl spacers. The material markedly accelerates condensation reactions in water in the absence of acid or base catalyst, as well as organocatalytic Michael-type reactions that also show superior enantioselectivity when comparing with the host-free transformation. The mesoscopic phase of the solid allows for easy diffusion of products and the catalytic solid is recycled and reused. Saturation transfer difference and two-dimensional (1)H nuclear Overhauser effect NOESY NMR spectroscopy show that non-covalent interactions are operative in these host-guest systems that account for substrate activation. The mesoscopic character of the host, its hydrophobicity and chemical stability in water, launch this material as a highly attractive supramolecular catalyst to facilitate (asymmetric) transformations under more environmentally friendly conditions.
Versión del editorhttps://doi.org/10.1038/ncomms10835
Identificadoresdoi: 10.1038/ncomms10835
issn: 2041-1723
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