RhIII and IrIII complexes bearing NNO-heteroscorpionates and their application in catalytic transfer hydrogenation

Jesus E. Cerón-Castelán; Veronica Salazar-Pereda; Simplicio González-Montiel; Daniel Mendoza-Espinosa; José A. Castro-Osma; Laura López-Santos; Manuel A. Gómez-Bonilla; Cesar I. Sandoval-Chavez

doi:10.1039/D2NJ02704F

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Rh^III and Ir^III complexes bearing NNO-heteroscorpionates and their application in catalytic transfer hydrogenation†

Jesus E. Cerón-Castelán,^a Veronica Salazar-Pereda,*^a Simplicio González-Montiel,^a Daniel Mendoza-Espinosa,

*^a José A. Castro-Osma,

^b Laura López-Santos,^c Manuel A. Gómez-Bonilla^a and Cesar I. Sandoval-Chavez*^d

Author affiliations

* Corresponding authors

^a Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5, Mineral de la Reforma, Hidalgo, Mexico
E-mail: salazar@uaeh.du.mx, daniel_mendoza@uaeh.edu.mx

^b Departamento de Química Inorgánica, Orgánica y Bioquímica, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas, U. de Castilla-La Mancha, Ciudad Real, Spain

^c Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), CSIC, and U. de Sevilla, Avenida Américo Vespucio 49, Sevilla, Spain

^d CONACYT-Research-Fellow. Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5, Mineral de la Reforma, Hidalgo, Mexico

Abstract

Equimolar treatment of the bis(pyrazol-1-yl)-phenylethanol ligand with [M(Cl)₃(H₂O)₃] precursors has been performed to obtain novel NNO-heteroscorpionate rhodium^III (1) and iridium^III (2) complexes. The structural features of 1 and 2 were determined by spectroscopic methods in solution and X-ray crystallography in the solid state. Complexes 1 and 2 are efficient catalysts for the transfer hydrogenation of ketones and aldehydes under low catalyst loadings.

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DOI: https://doi.org/10.1039/D2NJ02704F
Article type: Paper
Submitted: 31 May 2022
Accepted: 23 Sep 2022
First published: 23 Sep 2022

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New J. Chem., 2022,46, 19841-19847

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Rh^III and Ir^III complexes bearing NNO-heteroscorpionates and their application in catalytic transfer hydrogenation

J. E. Cerón-Castelán, V. Salazar-Pereda, S. González-Montiel, D. Mendoza-Espinosa, J. A. Castro-Osma, L. López-Santos, M. A. Gómez-Bonilla and C. I. Sandoval-Chavez, New J. Chem., 2022, 46, 19841 DOI: 10.1039/D2NJ02704F

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