Spatial effects of oxovanadium-immobilized mesoporous silica on racemization of alcohols and application in lipase-catalyzed dynamic kinetic resolution
We recently reported a new dynamic kineticresolution (DKR) method based on the combination of lipase-catalyzedkineticresolution of racemic alcohols and the V-MPS3-catalyzed in situ racemization of less reactive alcohol enantiomers. In V-MPS3, oxovanadium moieties were covalently bound to the inner surface of mesoporous silica (MPS) with a pore size of about 3 nm. The catalytic activity of V-MPS3
Langmuir Monolayers with a CF<sub>3</sub> Group in the Hydrophilic Head. Monolayers of Trifluoroethyl Ester of Behenic Acid
作者:Jordan G. Petrov、Helmuth Möhwald
DOI:10.1021/jp9613596
日期:1996.1.1
compared to the one of the ethyl behenate monolayers. The CF3 terminal of the ester radical reverses the sign of the surface potential and the vertical dipole moment component; negative values of ΔV and μ⊥ are obtained for the trifluoroethyl behenate monolayer, while positive values of ΔV and μ⊥ are characteristic for other neutral behenyl chain derivatives such as methyl and ethyl behenate, behenyl alcohol