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Lookup NU author(s): Dr Simon DohertyORCiD, Dr Julian Knight, Adam Bell, Dr Ross Harrington, Professor William Clegg
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Ruthenium(II) complexes of the type trans-[RuCl2-{1,2- bis((diphenylphosphino)methyl)cyclohexane}(diamine)]based on the inexpensive and easy-to-prepare rac- and (S,S)-1,2-bis-((diphenylphosphino)methyl) cyclohexaneform highly active and enantioselective catalysts for the asymmetric hydrogenation of a wide range of aryl and heteroaryl ketones, in most cases giving ee's that exceed those obtained with their BINAP counterparts. Although precatalysts based on 1,2-bis((diphenylphosphino)-methyl)cyclohexane slowly isomerize in solution to afford the thermodynamically favored isomer with a cis arrangement of chlorides, catalysts generated from both isomers afford similar enantioselectivities. © 2007 American Chemical Society.
Author(s): Doherty S, Knight JG, Bell AL, Harrington RW, Clegg W
Publication type: Article
Publication status: Published
Journal: Organometallics
Year: 2007
Volume: 26
Issue: 9
Pages: 2465-2468
ISSN (print): 0276-7333
ISSN (electronic): 1520-6041
Publisher: American Chemical Society
URL: http://dx.doi.org/10.1021/om070129i
DOI: 10.1021/om070129i
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