74426-28-1Relevant articles and documents
Preparation and characterization of magnetic graphene nanocomposite containing Cu(proline)2 as catalyst for asymmetric aldol reactions
Kooti,Kooshki,Nasiri
, p. 2641 - 2656 (2019/02/14)
A new catalyst has been prepared via immobilization of Cu(proline)2 complex onto the surface of magnetic graphene. The fabricated nanocatalyst was characterized by Fourier-transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (PXRD) analysis, vibrating-sample magnetometry (VSM), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, transmission electron microscopy (TEM), inductively coupled plasma (ICP) techniques, and elemental analysis. Its catalytic performance was investigated in the aldol reaction using a mild and ecofriendly procedure. The synthesized nanocomposite, which contains Cu(II) center as Lewis acid, was found to be an efficient catalyst for asymmetric aldol reactions, affording corresponding aldol products in high yield and excellent enantiomeric excess (> 90?%). The examined catalyst was prepared from low-cost, easily available starting materials and can be readily isolated by magnetic decantation for recycling and reuse in consecutive reactions without significant loss of activity.
Copper-dipyridylphosphine-catalyzed hydrosilylation: Enantioselective synthesis of aryl- and heteroaryl cycloalkyl alcohols
Qi, Shan-Bin,Li, Min,Li, Shijun,Zhou, Ji-Ning,Wu, Jun-Wen,Yu, Feng,Zhang, Xi-Chang,Chan, Albert S.C.,Wu, Jing
, p. 929 - 937 (2013/02/26)
The non-precious metal copper-catalyzed enantioselective hydrosilylation of a vast array of aryl cycloalkyl ketones with different ring sizes was studied systematically for the first time (up to 99% enantiomeric excess). The results demonstrated that the
Catalytic enantioselective synthesis of sterically demanding alcohols using di(2°-alkyl)zinc prepared by the refined Charette's method
Hatano, Manabu,Mizuno, Tomokazu,Ishihara, Kazuaki
supporting information; experimental part, p. 5443 - 5445 (2010/10/04)
A highly practical, catalytic enantioselective 2°-alkyl addition to aldehydes and ketones was developed. Chiral phosphoramide ligand (1) with salt-free and solvent-free di(2°-alkyl)zinc reagents prepared from (2°-alkyl)MgCl was essential. The Royal Society of Chemistry 2010.
