Fluorination with caesium fluoroxysulphate. Room temperuture flourination of phenyl substituted olefins
作者:Stojan Stavber、Marko Zupan
DOI:10.1016/s0040-4020(01)88055-8
日期:1986.1
Room-temperature fluorination of 1,1-diphenylethene with caesiumfluoroxysulphate in methylene chloride resulted in an addition elimination process, thus yielding 1, 1-diphenyl-2-fluoroethene, while in the presence of nucleophile containing species, i.e., hydrogen fluoride, methanol, or acetic acid, either vicinal difluorides, methoxy fluorides or acetoxy fluorides were formed. Reaction with norbornene
1-Fluoro-4-hydroxy-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) as a new, effective reagent for selective fluorofunctionalisation of alkenes under mild reaction conditions
作者:Stojan Stavber、Marko Zupan、Andrew J. Poss、George A. Shia
DOI:10.1016/00404-0399(50)1337-h
日期:1995.9
1-Fluoro-4-hydroxy-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (Accufluor(TM) NFTh) is confirmed as a highly effective reagent for introducing a fluorine atom into organic molecules across a phenyl-substituted carbon-carbon double bond. Quantitative and Markovnikov-type regioselective formation of vicinal fluoro-hydroxy, fluoro-methoxy or fluoro-acetoxy adducts was achieved when phenyl-substituted alkenes were treated with a MeCN solution of NFTh in the presence of water, methanol or acetic acid. The stereochemical course of fluoro-methoxylation reactions in the case of cyclic phenyl-substituted alkenes depends strongly on the structure of the alkene.
STAVBER S.; ZUPAN M., TETRAHEDRON, 42,(1986) N 18, 5035-5043