Organoaluminum cations for carbonyl activation

Kannan, Ramkumar and Chambenahalli, Raju and Kumar, Sandeep and Krishna, Athul and Andrews, Alex P and Jemmis, Eluvathingal D and Venugopal, Ajay (2019) Organoaluminum cations for carbonyl activation. In: CHEMICAL COMMUNICATIONS, 55 (97). pp. 14629-14632.

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Abstract

In search of stable, yet reactive aluminum Lewis acids, we have isolated an organoaluminum cation, (Me2NC6H4)(2)Al(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.

Item Type:	Journal Article
Publication:	CHEMICAL COMMUNICATIONS
Publisher:	ROYAL SOC CHEMISTRY
Additional Information:	Copyright of this article belongs to ROYAL SOC CHEMISTRY
Keywords:	HOMOLEPTIC LANTHANIDE AMIDES; HOMOGENEOUS CATALYSTS; ALUMINUM-HYDRIDE; ELECTROPHILIC ACTIVATION; LEWIS ACIDITY; HYDROSILYLATION; HYDROBORATION; COMPLEXES; REDUCTION; ALDEHYDES
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	30 Dec 2019 10:56
Last Modified:	30 Dec 2019 10:56
URI:	http://eprints.iisc.ac.in/id/eprint/64243

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