The Synthesis of γ,Δ-Ethylenic Perfluoroalkyl Ketones via Claisen Rearrangement
作者:C. Driss、M. M. Chaabouni、A. Baklouti
DOI:10.1080/00397919308011290
日期:1993.7
Abstract γ,Δ ethylenic perfluoroalkyl ketones, described for the first time, were prepared through the Claisen rearrangement of allyl F-alkylated vinyl ethers.
摘要 γ,Δ 烯属全氟烷基酮是首次通过烯丙基F-烷基化乙烯基醚的克莱森重排制备的。
Réactivité des 1-F-alkyl-2-fluoroéthyl p-toluénesulphonates en milieu basique
作者:A. Hedhli、M.M. Chaabouni、A. Baklouti
DOI:10.1016/s0022-1139(00)81105-7
日期:1992.2
The simple 2-fluorotosylates eliminate p-toluenesulphonic acid (HOTs) in basic media, the tosyl group being substituted by the action of a nucleophile. In contrast the F- alkylated homologous RFCHOTsCH2F undergo elimination of HF in the presence of a donor reagent leading to the 1-F-alkylvinyl p-toluenesulphonates RFCOTsCH2. Depending on the reaction conditions and the nature of the base, these
O-Alkylation des 1-F-alkyl-2-fluoroéthanols: synthèse d'acétals et d'éthers vinyliques F-alkylés
作者:C. Driss、M.M. Chaabounib、A. Baklouti
DOI:10.1016/0022-1139(93)02952-b
日期:1994.5
O-Alkylation of 1-F-alkyl-2-fluoroethanols may be achieved at 25-40-degrees-C by the action of halogenated derivatives in a basic medium and in the presence of a phase-transfer catalyst. This reaction is followed in most cases by dehydrofluorination to yield polyfluorinated vinyl acetals when the alkylating agent is dichloromethane and F-alkylated vinyl ethers when it is a monohalogenated derivative. With some other alkylating agents (iodomethane, 3-bromocyclohexene, 1-bromo-3-methylbut-2-ene and 1-bromobut-2-ene), partial or no dehydrofluorination is achieved in the homogeneous phase by the action of KOH in triethylene glycol at 100-degrees-C.