Building a Green, Robust, and Efficient Bi-MOF Heterogeneous Catalyst for the Strecker Reaction of Ketones

• Published in: Inorganic chemistry Vol. 61; no. 19; pp. 7523 - 7529
• Main Authors: Gómez-Oliveira, Eloy P., Méndez, Nayara, Iglesias, Marta, Gutiérrez-Puebla, Enrique, Aguirre-Díaz, Lina M., Monge, M. Ángeles
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 16-05-2022
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/acs.inorgchem.2c00628

In this work, we present the new [Bi14(μ3-O)9(μ4-O)2(μ3–OH)5(3,5-DSB)5(H2O)3]·7H2O, BiPF-4 (bismuth polymeric framework4) MOF, its microwave hydrothermal synthesis, as well as its behavior as a heterogeneous catalyst in the multicomponent organic Strecker reaction. The BiPF-4 material shows a three-dimensional (3D) framework formed by peculiar inorganic oxo-hydroxo-bismutate layers connected among them through the 3,5-dsb (3,5-disulfobenzoic acid) linker. These two-dimensional (2D) layers, built by junctions of Bi7 polyhedra SBU, provide the material of many Lewis acid catalytic sites because of the mixing in the metal coordination number. BiPF-4 is a highly robust, green, and stable material that demonstrates an excellent heterogeneous catalytic activity in the multicomponent Strecker reaction of ketones carried out in one-pot synthesis, bringing a reliable platform of novel green materials based on nontoxic and abundant metal sources such as bismuth.