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Kinetic and structural studies on 'tethered' Ru(II) arene ketone reduction catalysts

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Cheung, Fung Kei, Clarke, Adam J., Clarkson, Guy J., Fox, D. J. (David J.), Graham, Mark A., Lin, Changxue, Crivillé, Adriana Lorente and Wills, Martin. (2010) Kinetic and structural studies on 'tethered' Ru(II) arene ketone reduction catalysts. Dalton Transactions, Vol.39 (No.5). pp. 1395-1402. ISSN 1477-9226

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Official URL: http://dx.doi.org/10.1039/b915932k

Abstract

A series of kinetic and structural investigations on ruthenium-based catalysts for asymmetric transfer hydrogenation (ATH) of ketones are reported. A method is reported for monitoring the formation of ruthenium hydride species in real time using H-1 NMR spectroscopy.

Item Type:

Journal Article

Subjects:

Q Science > QD Chemistry

Divisions:

Faculty of Science > Chemistry

Library of Congress Subject Headings (LCSH):

Catalysts -- Analysis, Ruthenium, Ketones

Journal or Publication Title:

Dalton Transactions

Publisher:

Royal Society of Chemistry

ISSN:

1477-9226

Official Date:

2010

Dates:

Date	Event
2010	Published

Volume:

Vol.39

Number:

No.5

Number of Pages:

Page Range:

pp. 1395-1402

Identification Number:

10.1039/b915932k

Status:

Peer Reviewed

Publication Status:

Published

Access rights to Published version:

Restricted or Subscription Access

Funder:

Engineering and Physical Sciences Research Council (EPSRC), AstraZeneca (Firm), British Council

Grant number:

GR/S72214/1 (EPSRC), EP/D072182/1 (EPSRC)

References:

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8. We thank a referee for making the observation that for the runs at 2M PhCOMe and above, the initial rate (slope) is essentially constant, at ca. 0.05 M min-1. This limiting rate should be equal to k2[9] (assuming rate determining k2) and so k2 can be obtained by simply dividing the rate by catalyst concentration (0.01 M) to give k2 = ca. 5 min-1, which matches the curve-fitting calculation quite closely.
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URI:

http://wrap.warwick.ac.uk/id/eprint/6528

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