A new NCN pincer ruthenium complex and its catalytic activity for enantioselective hydrogenation of ketones.
New bis(oxazolinyl)phenyl-ruthenium(II) complexes, which were synthesized by C-H bond activation with RuCl(3).3H(2)O in zinc powder and 1,5-cyclooctadine followed by ligand exchange reaction with sodium acetylacetonate or acetylacetone, exhibited enantioselective hydrogenation of ketones in up to 90% ee.
Ito
Jun-ichi
J
Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan.
Ujiie
Satoshi
S
Nishiyama
Hisao
H