Ye, Baihua;Cramer, Nicolai published 《Chiral Cyclopentadienyl Ligands as Stereocontrolling Element in Asymmetric C-H Functionalization》. The research results were published in《Science (Washington, DC, United States)》 in 2012.Product Details of 2235-01-0 The article conveys some information:
Metal complexes coordinated by a single cyclopentadienyl (Cp) ligand are widely used, versatile catalysts, but their application to asym. reactions has been hindered by the difficulty of designing Cp substituents that effectively bias the coordination sphere. Here, we report on a class of simple C2-sym. Cp derivatives that finely control the spatial arrangement of the transiently coordinated reactants around the central metal atom. Rhodium(III) complexes bearing these ligands proved to be highly enantioselective catalysts for directed carbon-hydrogen (C-H) bond functionalizations of hydroxamic acid derivatives To complete the study, the researchers used Dimethoxydiphenylmethane (cas: 2235-01-0) .
The unique properties of ethers (i.e., that they are strongly polar, with nonbonding electron pairs but no hydroxyl group) enhance the formation and use of many reagents. For example, Grignard reagents cannot form unless an ether is present to share its lone pair of electrons with the magnesium atom.Product Details of 2235-01-0
Reference:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem