Phosphine-Free Cp*Ru(Diamine) Catalysts in the Hydrogenation of Imines
2008 (English)In: Chemistry - An Asian Journal, ISSN (Print)1861-4728.(Online)1861-471X, Vol. 3, no 8-9, 1390-1394 p.Article in journal (Refereed) Published
We previously reported the phosphine-free Cp*Ru(diamine)-catalyzed hydrogenation of aryl methyl ketones. Herein we present the first report of ruthenium-diamine-catalyzed imine hydrogenation to form amines. The most effective catalyst, I/KOtBu, completely converted several imines to amines at room temperature. The effect of electron-donating and -with- drawing groups on the reaction was investigated using a suitable series of substrates. The asymmetric version of the reaction was studied for two substrates, and the chiral amine products could be obtained in moderate enantiomeric excess.
Place, publisher, year, edition, pages
2008. Vol. 3, no 8-9, 1390-1394 p.
diamine ligands, hydrogenations, imines, ruthenium
IdentifiersURN: urn:nbn:se:uu:diva-17848DOI: 10.1002/asia.200800182ISI: 000259119400020OAI: oai:DiVA.org:uu-17848DiVA: diva2:45619