Issue 97, 2019

Organoaluminum cations for carbonyl activation

Abstract

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

Supplementary files

Article information

Article type
Communication
Submitted
22 oct. 2019
Accepted
12 nov. 2019
First published
12 nov. 2019

Chem. Commun., 2019,55, 14629-14632

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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