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Issue 97, 2019
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Organoaluminum cations for carbonyl activation

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In search of stable, yet reactive aluminum Lewis acids, we have isolated an organoaluminum cation, [(Me2NC6H4)2Al(C4H8O)2]+, coordinated with two labile tetrahydrofuran ligands. Its catalytic performance in aldehyde dimerization reveals turn-over frequencies reaching up to 6000 h−1, exceeding that of the reported main group catalysts. The cation is further demonstrated to catalyze hydroelementation of ketones. Mechanistic investigations reveal that aldehyde dimerization and ketone hydrosilylation occur through carbonyl activation.

Graphical abstract: Organoaluminum cations for carbonyl activation

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The article was received on 22 Oct 2019, accepted on 12 Nov 2019 and first published on 12 Nov 2019

Article type: Communication
DOI: 10.1039/C9CC08272G
Chem. Commun., 2019,55, 14629-14632

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    Organoaluminum cations for carbonyl activation

    R. Kannan, R. Chambenahalli, S. Kumar, A. Krishna, A. P. Andrews, E. D. Jemmis and A. Venugopal, Chem. Commun., 2019, 55, 14629
    DOI: 10.1039/C9CC08272G

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