New Bis(oxazolinyl)phenyl−Ruthenium(II) Complexes and Their Catalytic Activity for Enantioselective Hydrogenation and Transfer Hydrogenation of Ketones
作者:Jun-ichi Ito、Satoshi Ujiie、Hisao Nishiyama
DOI:10.1021/om800953f
日期:2009.1.26
Synthesis and characterization of ruthenium(II) complexes having a meridional bis(oxazolinyl)benzene (dm-Phebox-R)H (1a: R = ip, 1b: R = ph, 1c: R = dm; ip = isopropyl, dm = dimethyl, ph = phenyl) ligand and their applications to enantioselective hydrogenation and transfer hydrogenation of simple ketones are described. Reaction of (dm-Phebox-R)H with RuCl3·3(H2O) in the presence of Zn and 1,5-cyclooctadiene
Catalysts for Selective Coupling of Olefins, and Methods of Making and Using Same
申请人:RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
公开号:US20190126260A1
公开(公告)日:2019-05-02
The present invention relates in part to the unexpected discovery of novel complexes capable of catalyzing the selective dehydrogenative coupling of olefins. The invention further relates to the use of these complexes for the selective coupling of olefins.
Efficient Preparation of New Rhodium- and Iridium-[Bis(oxazolinyl)-3,5-dimethylphenyl] Complexes by CH Bond Activation: Applications in Asymmetric Synthesis
作者:Jun-ichi Ito、Takushi Shiomi、Hisao Nishiyama
DOI:10.1002/adsc.200606049
日期:2006.7
-iridium complexes were synthesized in high yields by an efficient CH bond activation method with 4,6-dimethyl-1,3-bis(oxazolinyl)benzene derivatives. The catalytic activity of the complexes was examined for the asymmetric conjugate reduction of (E)-ethyl 3-phenylbut-2-enoate and the asymmetricreductivealdolreaction of tert-butyl acrylate and benzaldehyde. It was found that the rhodium complex of 3