Perfluoro-2-butyltetrahydrofuran

CgF gO represents a mixture of isomers of cycHc perfluoroaUphatic ethers, primarily perfluoro-2-butyltetrahydrofuran [335-36-4]. 

CgF gO denotes a mixture of cycHc perfluoroaHphatic ethers, primarily perfluoro-2-butyltetrahydrofuran C F NO denotes ... 

With an amine reactant, it has been shown that roughly one-third of the current passed makes Hquid product, one-third gas, and one-third goes to HF-soluble polyfluorinated products (24). The ether perfluoro(2-butyltetrahydrofuran) [335-36-4] is made from a cyclization process during the ECF of perfluorooctanoyl chloride other cycHc ethers have been prepared from certain ester reactants by a similar cyclization (25). Perfluoroaminoethers have been prepared by ECF (26). 

Figure 23 shows a biphasic toluene/perfluoro-2-butyltetrahydrofuran (Fluoro-inert FC-75) mixture containing dendrimer-encapsulated Pd nanoparticles complexed with poly(hexafluoropropylene oxide-co-difluoromethylene oxide) monocarboxylic acid prepared via the type of electrostatic modification de-... 

Fig. 23. This photograph shows a two-phase system consisting of (top phase) toluene and (bottom phase) perfluoro-2-butyltetrahydrofuran (Fluoroinert FC-75).The dark color (brown) in the bottom phase indicates that the dendrimer-encapsulated Pd nanoparticles, complexed with poly (hexafluoropropylene oxide-co-difluoromethylene oxide) monocarboxylic acid, are selectively extracted into the fluorous phase. No detectable color was observed in the organic phase. Reprinted with permission from Ref. 103 Copyright 2000 American Chemical Society...

Using a similar approach, Chechik and Crooks (73), modified the PAMAM dendrimer-encapsulated palladium nanoparticles with perfluoropolyether tails utilizing non-covalent ion-pair interactions. The catalytic hydrogenation of six substrates under biphasic conditions (toluene/ perfluoro-2-butyltetrahydrofuran FC-75) was investigated. Allyl alcohol, methyl acrylate, vinyl isopropenyl ether, and... 

Electrochemical fluorination (ECF) is described in Section 6.4.7. for the manufacture of surface-active agents. Coproducts from the ECF of octylsulfonyl fluoride are linear perfluoro-carbons containing from three to eight carbon atoms, while octanoyl fluoride yields a mixture of perfluorocyclic ethers containing mainly perfluoro(2-butyltetrahydrofuran) and perfluoro(2-propylpyran). ECF is also used for the manufacture of specific perfluorocarbon fluids, notably perfluoro(tripropylamine) and perfluoro(tripentylamine), from the corresponding hydrocarbon analogs. 

Perfluoro-2-butyltetrahydrofuran Decafluorotriphenyl phosphine (ultramark 443 DFTPP)... 

Reaction of Perfluoro-2-butyltetrahydrofuran with Aluminum Chloride... 

What happens when perfluoro-2-butyltetrahydrofuran is heated with aluminum chloride ... 

Figure 5.9 Effect of substrate temperature on /co/p for perfluoro-2-butyltetrahydrofuran.

Figure 5.10 Plot of ln( /p) versus WjFM x perfluoro-2-butyltetrahydrofuran Q tetr afluor oethylene.

Figure 5.12 Plot of ln(v4/p) versus n WIFM) O - perfluoro-2-butyltetrahydrofuran x Tetrafluoroethylene ethylene.

Figure 5.13 Plot of 4/p versus WjFM Q perfluoro-2-butyltetrahydrofuran x tetrafluoro-ethylene ethylene.

Figure 5.14 Slopes of Fig. 5.13 versus molecular weight PFBTHF Perfluoro-2-butyltetrahydrofuran TFE tetrafluoroethylene. 

Figure 7.1 Dependence of oxygen content in the plasma polymer of perfluoro-2-butyltetrahydrofuran on WjFM. Adapted from Ref. 1.

One of the first reactions carried out in perfluorinated solvents was the transesterification described by Zhu in 1993 [10]. He used the perfluorinated solvent FC-77 (mainly perfluoro-2-butyltetrahydrofuran) for an azeotropic distillation of the formed methanol or propanol in the transesterification of methyl- or pro-pylesters 1 with different alcohols 2 using a Dean-Stark apparatus Eq. (1). 

Hexamethyldisilazane, trifluoroacetic anhydride, hexafluorobenzene, pentafluoropy ridine, perfluoro-2-butyltetrahydrofuran... 

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