Micellar-System-Mediated Direct Fluorination of Ketones in Water
作者:Stojan Stavber、Gaj Stavber、Marko Zupan
DOI:10.1055/s-0028-1087924
日期:2009.3
A micellar system was developed and applied for direct regioselective fluorination of a variety of cyclic and acyclic ketones to α-fluoroketones in water as reaction medium with Selectfluor F-TEDA-BF 4 as fluorinating reagent. The inexpensive ionic amphiphile sodium dodecyl sulfate (SDS) was found to be an excellent promoter for fluorofunctionalization of hydrophobicketones without prior activation
Taming elemental fluorine: Indirect use of fluorine for the synthesis of α-fluoroketones[1]
作者:Shlomo Rozen、Ynon Menahem
DOI:10.1016/s0022-1139(00)85146-5
日期:1980.7
Fluorine and sodium trifluoroacetate react at −75° to produce a variety of fluoroxy-compounds. Although it is possible to direct the reaction towards the formation of CF3COOF or CF3CF2OF, mixtures may be used when only the electrophilicfluorine has to be attached to the molecule of interest. Such is the case of the reaction of enol-acetates with the mixture of the fluoroxy reagents. A wide variety
A p-toluenesulfonic acid catalyzed fluorination of α-branched ketones for the construction of fluorinated quaternary carbon centers has been developed, featuring a broad substrate scope, environmentally benign reaction conditions, and operational simplicity.
Characteristic Behavior of Chemisorbed Oxygen towards CO on Ag Surface
作者:Kenzi Tamaru
DOI:10.1246/cl.1999.577
日期:1999.7
When oxygen reacts with CO on Ag surface, the silver surface is fully coveed by oxygen, but only a limited part of the chemisorbed oxygen participates in the reaction. Such characteristic behavior was discussed on the basis of STM observation.