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Iminophosphanes: Synthesis, Rhodium Complexes, and Ruthenium(II)-Catalyzed Hydration of Nitriles

By Mark K. Rong, Koen Van Duin, Tom Van Dijk, Jeroen J.M. De Pater, Berth Jan Deelman, Martin Nieger, A. W. Ehlers, J. Chris Slootweg and Koop Lammertsma

Abstract

Highly stable iminophosphanes, obtained from alkylating nitriles and reaction of the resulting nitrilium ions with secondary phosphanes, were explored as tunable P-monodentate and 1,3-P,N bidentate ligands in rhodium complexes. X-ray crystal structures are reported for both κ1 and κ2 complexes with the counterion in one of them being an unusual anionic coordination polymer of silver triflate. The iminophosphane-based ruthenium(II)-catalyzed hydration of benzonitrile in 1,2-dimethoxyethane (180 °C, 3 h) and water (100 °C, 24 h) and under solvent free conditions (180 °C, 3 h) results in all cases in the selective formation of benzamide with yields of up to 96%, thereby outperforming by far the reactions in which the common 2-pyridyldiphenylphosphane is used as the 1,3-P,N ligand

Topics: Physical and Theoretical Chemistry, Organic Chemistry, Inorganic Chemistry
Year: 2017
DOI identifier: 10.1021/acs.organomet.7b00057
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Provided by: NARCIS
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