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Källström, Klas
Publications (5 of 5) Show all publications
Källström, K. & Andersson, P. (2006). Asymmetric hydrogenation of tri-substituted alkenes with Ir-NHC-thiazole complexes. Tetrahedron Letters, 47(42), 7477-7480
Open this publication in new window or tab >>Asymmetric hydrogenation of tri-substituted alkenes with Ir-NHC-thiazole complexes
2006 (English)In: Tetrahedron Letters, ISSN 0040-4039, E-ISSN 1359-8562, Vol. 47, no 42, p. 7477-7480Article in journal (Refereed) Published
Abstract [en]

An efficient chiral N-heterocyclic carbene ligand for the Ir-catalyzed asymmetric hydrogenation of largely unfunctionalized tri-substituted olefins has been developed. The Ir-NHC-thiazole catalyst is able to reduce a large variety of substrates with excellent conversions and good enantioselectivities with ee's ranging from 34% to 90%, depending on the geometry around the double bond of the substrates.

National Category
Organic Chemistry
Identifiers
urn:nbn:se:uu:diva-84297 (URN)10.1016/j.tetlet.2006.08.039 (DOI)000241063900018 ()
Available from: 2006-11-14 Created: 2006-11-14 Last updated: 2017-12-14Bibliographically approved
Källström, K., Munslow, I. & Andersson, P. (2006). Ir-Catalysed Asymmetric Hydrogenation: Ligands, Substrates and Mechanism. Chem. Eur. J. (12), 3194-3200
Open this publication in new window or tab >>Ir-Catalysed Asymmetric Hydrogenation: Ligands, Substrates and Mechanism
2006 (English)In: Chem. Eur. J., no 12, p. 3194-3200Article in journal (Refereed) Published
National Category
Organic Chemistry
Identifiers
urn:nbn:se:uu:diva-84301 (URN)doi:10.1002/chem.200500755 (DOI)
Available from: 2006-11-14 Created: 2006-11-14 Last updated: 2011-01-11
Hedberg, C., Källström, K., Arvidsson, P., Brandt, P. & Andersson, P. (2005). Mechanistic Insights into the Phosphine-Free RuCp*-Diamine-Catalyzed Hydrogenation of Aryl Ketones: Experimental and Theoretical Evidence for an Alcohol-Mediated Dihydrogen Activation. J. Am. Chem. Soc. (127), 15083-15090
Open this publication in new window or tab >>Mechanistic Insights into the Phosphine-Free RuCp*-Diamine-Catalyzed Hydrogenation of Aryl Ketones: Experimental and Theoretical Evidence for an Alcohol-Mediated Dihydrogen Activation
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2005 (English)In: J. Am. Chem. Soc., no 127, p. 15083-15090Article in journal (Refereed) Published
Abstract
National Category
Organic Chemistry
Identifiers
urn:nbn:se:uu:diva-84289 (URN)doi:10.1021/ja051920Q (DOI)
Available from: 2006-11-14 Created: 2006-11-14 Last updated: 2016-08-17
Källström, K., Hedberg, C., Brandt, P., Bayer, A. & Andersson, P. (2004). Rationally Designed LIgands for Asymmetric Iridium-Catalyzed Hydrogenation of Olefins. J. Am. Chem. Soc. (126), 14308-14309
Open this publication in new window or tab >>Rationally Designed LIgands for Asymmetric Iridium-Catalyzed Hydrogenation of Olefins
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2004 (English)In: J. Am. Chem. Soc., no 126, p. 14308-14309Article in journal (Refereed) Published
Abstract
National Category
Organic Chemistry
Identifiers
urn:nbn:se:uu:diva-84381 (URN)doi:10.1021/ja046421 (DOI)
Available from: 2006-11-15 Created: 2006-11-15 Last updated: 2016-08-17
Ekegren, J., Roth, P., Källström, K., Tarnai, T. & Andersson, P. (2003). Synthesis and evaluation of N,S-compounds as chiral ligands for transfer hydrogenation of acetophenone. Org. Biomol. Chem (1), 358-366
Open this publication in new window or tab >>Synthesis and evaluation of N,S-compounds as chiral ligands for transfer hydrogenation of acetophenone
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2003 (English)In: Org. Biomol. Chem, no 1, p. 358-366Article in journal (Refereed) Published
National Category
Organic Chemistry
Identifiers
urn:nbn:se:uu:diva-84390 (URN)doi:10.1039/b208907f (DOI)
Available from: 2006-11-15 Created: 2006-11-15 Last updated: 2011-01-13
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