Further 'tethered' Ru(II) catalysts for asymmetric transfer hydrogenation (ATH) of ketones; the use of a benzylic linker and a cyclohexyldiamine ligand
Martins, Jose E. D., Morris, David J., Tripathi, Bhavana and Wills, Martin. (2008) Further 'tethered' Ru(II) catalysts for asymmetric transfer hydrogenation (ATH) of ketones; the use of a benzylic linker and a cyclohexyldiamine ligand. Journal of Organometallic Chemistry, Vol.693 (No.23). pp. 3527-3532. ISSN 0022-328XFull text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.jorganchem.2008.08.026
The synthesis and characterisation of two new Ru(II) catalysts for the asymmetric transfer hydrogenation (ATH) of ketones is described. In the case of 4, the novelty lies in the use of a benzyl tethering group between the asymmetric ligand part (TsDPEN) and the eta(6)-arene ring, which increases the complex rigidity. For 5, the use of a cyclohexyldiamine as a chiral ligand is described for the first time. In the ATH of ketones in formic acid/triethylamine,alcohols with ees of up to 97% were formed. (C) 2008 Elsevier B.V. All rights reserved.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry|
|Divisions:||Faculty of Science > Chemistry|
|Library of Congress Subject Headings (LCSH):||Ruthenium, Catalysis, Hydrogenation, Ketones, Reduction (Chemistry)|
|Journal or Publication Title:||Journal of Organometallic Chemistry|
|Official Date:||1 November 2008|
|Number of Pages:||6|
|Page Range:||pp. 3527-3532|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||Engineering and Physical Sciences Research Council (EPSRC), Daphne Jackson Trust|
 (a) M.J. Palmer, M. Wills, Tetrahedron: Asymmetr. 10 (1999) 2045;
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