Resumo

NOVAL, Virginia E.; OCHOA PUENTES, Cristian  e  CARRIAZO, Jose G.. Magnetite (Fe ₃ O ₄ ): An inorganic structure with many applications for heterogeneous catalysis. Rev.Colomb.Quim. [online]. 2017, vol.46, n.1, pp.42-59. ISSN 0120-2804.

This manuscript contains a review on the mediation of magnetite, an inorganic material with an inverse spinel structure (FeFe204), being used as either catalyst or catalytic support in many chemical reactions of scientific, technological and environmental interest. Because of current awareness on the efficient and environmentally friendly chemical processes, magnetite has become as a promising material in contexts such as green chemistry, fine chemistry, and heterogeneous catalysis. This iron oxide has been used in several reactions as bulk catalyst, catalytic support of either metals or metal oxides, core in catalysts type core-shell, or as solid modified by grafting with organocatalysts and metal complexes. The catalytic performance of these systems has been described in some chemical processes such as: asymmetric catalysis, environmental catalysis, acid-base catalysis, redox reactions, multicomponent synthesis reactions, and those of C-C coupling. Particularly, these catalysts have shown large importance in a variety of reactions: Sonogashira, Sonogashira-Hagihara, Mannich, Ullman, Knoevenagel, Suzuki-Miyaura, and the Fenton heterogeneous reaction, among others. Finally, some technological uses of magnetite in the national context (Colombia) are detailed, and localizing geographically the most important deposits of this mineral in the Colombian region was intended.

Palavras-chave : magnetite; Fe30₄; catalysis; green chemistry; organic synthesis.

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