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A mesoporous indium metal-organic framework: remarkable advances in catalytic activity for strecker reaction of ketones

AuthorsReinares-Fisac, Daniel; Aguirre-Díaz, Lina María ; Iglesias, Marta ; Snejko, Natalia ; Gutiérrez-Puebla, Enrique ; Monge, M. Ángeles ; Gándara Barragán, Felipe
Issue Date27-Jul-2016
PublisherAmerican Chemical Society
CitationJournal of the American Chemical Society 138(29): 9089-9092 (2016)
AbstractWith the aim of developing new highly porous, heterogeneous Lewis acid catalysts for multicomponent reactions, a new mesoporous metal-organic framework, InPF-110 ([InO(btb)(HCOO)(L)], (Hbtb = 1,3,5-tris(4-carboxyphenyl)benzene acid, L = methanol, water, or ethanol), has been prepared with indium as the metal center. It exhibits a Langmuir surface area of 1470 m g, and its structure consists of hexagonal pores with a 2.8 nm aperture, which allows the diffusion of multiple substrates. This material presents a large density of active metal sites resulting in outstanding catalytic activity in the formation of substituted α-aminonitriles through the one-pot Strecker reaction of ketones. In this respect, InPF-110 stands out compared to other catalysts for this reaction due to the small catalyst loadings required, and without the need for heat or solvents. Furthermore, X-ray single crystal diffraction studies clearly show the framework-substrate interaction through coordination to the accessible indium sites.
Publisher version (URL)https://doi.org/10.1021/jacs.6b05706
Identifiersdoi: 10.1021/jacs.6b05706
e-issn: 1520-5126
issn: 0002-7863
Appears in Collections:(ICMM) Artículos
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