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Reduction of imines catalysed by NHC substituted group 6 metal carbonyls

Reshi, Noor U Din and Kathuria, Lakshay and Samuelson, Ashoka G (2019) Reduction of imines catalysed by NHC substituted group 6 metal carbonyls. In: INORGANICA CHIMICA ACTA, 486 . pp. 119-128.

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Official URL: https://doi.org/10.1016/j.ica.2018.10.026

Abstract

The catalytic activity of a series of metal carbonyls M(CO)(6)], and the corresponding NHC substituted M(CO)(5)(NHC)], (M = Cr, Mo, W) complexes was examined in the reduction of N-benzylideneaniline and acetophenone using silyl hydrides and isopropanol/KOH as reductants. The use of various additives and ultraviolet irradiation to promote the reduction of imines using silyl hydrides as reductants was explored. From a comparison of the reactivity of Mo(CO)(6)], Mo(CO)(5)(NHC)] and Mo(CO)(4)(bis NHC)] it was inferred that electron density on the metal centre plays a key role in the catalysis. Four of the best catalysts were then tested in the reduction of a variety of imines with different electronic and steric properties.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to ELSEVIER SCIENCE SA
Keywords: Reduction; Hydrosilylation; Silyl hydrides; Group 6 NHC complexes; Imines
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Id for Latest eprints
Date Deposited: 28 Jan 2019 08:52
Last Modified: 28 Jan 2019 08:52
URI: http://eprints.iisc.ac.in/id/eprint/61470

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