DE1568841C - Process for the preparation of new aromatic compounds which contain perfluoroalkyl groups in the nucleus - Google Patents
Process for the preparation of new aromatic compounds which contain perfluoroalkyl groups in the nucleusInfo
- Publication number
- DE1568841C DE1568841C DE1568841C DE 1568841 C DE1568841 C DE 1568841C DE 1568841 C DE1568841 C DE 1568841C
- Authority
- DE
- Germany
- Prior art keywords
- autoclave
- dry
- hexafluorobenzene
- distilled
- hours
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 4
- 150000001491 aromatic compounds Chemical class 0.000 title description 8
- 210000004940 Nucleus Anatomy 0.000 title description 5
- 125000005010 perfluoroalkyl group Chemical group 0.000 title description 4
- 238000002360 preparation method Methods 0.000 title description 2
- ZQBFAOFFOQMSGJ-UHFFFAOYSA-N Hexafluorobenzene Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1F ZQBFAOFFOQMSGJ-UHFFFAOYSA-N 0.000 claims description 20
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- XJHCXCQVJFPJIK-UHFFFAOYSA-M Caesium fluoride Chemical compound [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 claims description 10
- BFKJFAAPBSQJPD-UHFFFAOYSA-N Tetrafluoroethylene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- HCDGVLDPFQMKDK-UHFFFAOYSA-N Hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
- -1 perfluoro Chemical group 0.000 claims description 5
- KGCDGLXSBHJAHZ-UHFFFAOYSA-N 1-chloro-2,3,4,5,6-pentafluorobenzene Chemical compound FC1=C(F)C(F)=C(Cl)C(F)=C1F KGCDGLXSBHJAHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 238000000921 elemental analysis Methods 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- USPWUOFNOTUBAD-UHFFFAOYSA-N 1,2,3,4,5-pentafluoro-6-(trifluoromethyl)benzene Chemical compound FC1=C(F)C(F)=C(C(F)(F)F)C(F)=C1F USPWUOFNOTUBAD-UHFFFAOYSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 229910020156 CeF Inorganic materials 0.000 claims description 2
- 238000001819 mass spectrum Methods 0.000 claims description 2
- 238000004587 chromatography analysis Methods 0.000 claims 3
- 238000001228 spectrum Methods 0.000 claims 3
- ZHNUHDYFZUAESO-UHFFFAOYSA-N formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims 2
- BMFPHHLKGOOCHE-UHFFFAOYSA-N 1,2,3,4,5-pentafluoro-6-(1,1,2,2,2-pentafluoroethyl)benzene Chemical class FC1=C(F)C(F)=C(C(F)(F)C(F)(F)F)C(F)=C1F BMFPHHLKGOOCHE-UHFFFAOYSA-N 0.000 claims 1
- ALYRQDTWAGAAGB-UHFFFAOYSA-N 1,2,3,4-tetrafluoro-5,6-bis(1,1,2,2,3,3,3-heptafluoropropyl)benzene Chemical compound FC1=C(F)C(F)=C(C(F)(F)C(F)(F)C(F)(F)F)C(C(F)(F)C(F)(F)C(F)(F)F)=C1F ALYRQDTWAGAAGB-UHFFFAOYSA-N 0.000 claims 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N Cesium Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 229910052792 caesium Inorganic materials 0.000 claims 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims 1
- 150000002222 fluorine compounds Chemical class 0.000 claims 1
- 238000005194 fractionation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 claims 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 claims 1
- 239000011541 reaction mixture Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- QSUJAUYJBJRLKV-UHFFFAOYSA-M tetraethylazanium;fluoride Chemical compound [F-].CC[N+](CC)(CC)CC QSUJAUYJBJRLKV-UHFFFAOYSA-M 0.000 claims 1
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 description 5
- 125000005004 perfluoroethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- NROKBHXJSPEDAR-UHFFFAOYSA-M Potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 125000005009 perfluoropropyl group Chemical group FC(C(C(F)(F)F)(F)F)(F)* 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- JDCMOHAFGDQQJX-UHFFFAOYSA-N 1,2,3,4,5,6,7,8-octafluoronaphthalene Chemical compound FC1=C(F)C(F)=C(F)C2=C(F)C(F)=C(F)C(F)=C21 JDCMOHAFGDQQJX-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N DMA Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N Diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N Hexamethylphosphoramide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N Sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WHWBTOCNUBAGRL-UHFFFAOYSA-N cobalt;formaldehyde Chemical group [Co].O=C WHWBTOCNUBAGRL-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N n-methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Description
Es ist bekannt, daß Tetrafluoräthylen sich an einige aromatische Verbindungen, z. B. Benzol und gewisse substituierte Benzole, in Gegenwart von nichtionischen Katalysatoren, wie Kobaltcarbonyl, addieren kann, um "z. B. Fluoralkylbenzole zu ergeben, in welchen die Fluoralkyl-Seitenketten endständige Wasserstoffatome aufweisen, doch müssen die als Ausgangsmaterial verwendeten aromatischen Verbindungen mindestens 1 Wasserstoffatom an den Kern gebunden enthalten, und weiter muß ein Wasserstoff atom für jedes Molekül ίο Tetrafluoräthylen, das sich an den Kern addiert, an den Kern gebunden sein.It is known that tetrafluoroethylene adapts to some aromatic compounds, e.g. B. Benzene and certain substituted benzenes, in the presence of nonionic catalysts such as cobalt carbonyl, can add, to give "e.g., fluoroalkylbenzenes in which the fluoroalkyl side chains are terminal hydrogen atoms have, but the aromatic compounds used as starting material must be at least 1 hydrogen atom bound to the nucleus, and further must contain one hydrogen atom for each molecule ίο Tetrafluoroethylene, which adds to the core, be bound to the core.
Es wird gemäß der Erfindung ein Verfahren zur Herstellung von neuen aromatischen Verbindungen, die kernständige Perfluoralkylgruppen enthalten, vorgeschlagen, welches dadurch gekennzeichnet ist, daß man Hexafluorbenzol, Pentafluorchlorbenzol, Tetrafluordichlorbenzol, Octafluortoluol, Decafluordiphenyl, Octafluornaphthalin oder Decafluoranthracen mit Tetrafluoräthylen oder Hexafluorpropen in Gegenwart von Alkalifluoriden oder Tetraalkylammoniumfluoriden als ionischen Katalysatoren je nach den eingesetzten Ausgangsstoffen bei Temperaturen bis zu 25O0C im geschlossenen Gefäß umsetzt.According to the invention, a process for the preparation of new aromatic compounds which contain perfluoroalkyl groups in the nucleus is proposed, which is characterized in that hexafluorobenzene, pentafluorochlorobenzene, tetrafluorodichlorobenzene, octafluorotoluene, decafluorodiphenyl, octafluoronaphthalene or decafluoronaphthalene or decafluoropropylene or hexafluoropropylene with tetrafluoropropylene or hexafluoropropylene or hexafluoropropylene are present Tetraalkylammonium fluorides as ionic catalysts depending on the starting materials used at temperatures up to 250 0 C in a closed vessel.
Tetrafluoräthylen und Hexafluorpropen addieren sich also an der genannten aromatischen Verbindung, die kein Wasserstoffatom an den Kern gebunden enthalten, und ergeben Derivate, in welchen vollständig fluorierte Seitenketten, die keine endständigen Wasserstoffatome enthalten, an den Kern gebunden sind.Tetrafluoroethylene and hexafluoropropene add up on the aromatic compound mentioned, which contain no hydrogen atom bonded to the nucleus, and give derivatives in which completely fluorinated side chains that do not contain terminal hydrogen atoms attached to the core are.
Die Reaktionstemperatur beträgt zweckmäßig 20 bis 250° C, vorzugsweise 50 bis 150° C.The reaction temperature is expediently 20 to 250 ° C., preferably 50 to 150 ° C.
Es ist gewöhnlich zweckmäßig, ein flüssiges Reaktionsmedium zu verwenden, doch ist dies nicht erforderlich. Geeignete Reaktionsmedien sind Dimethylformamid, Dimethylacetamid, Tetramethylensulfon, N-Methylpyrrolidon, Hexamethylphosphoramid und Diäthylenglykoldimethyläther.It is usually convenient to use a liquid reaction medium, but this is not necessary. Suitable reaction media are dimethylformamide, dimethylacetamide, tetramethylene sulfone, N-methylpyrrolidone, hexamethylphosphoramide and diethylene glycol dimethyl ether.
Wenn die aromatische Ausgangsverbindung Hexafluorbenzol ist, besitzen die Produkte der Reaktion die allgemeine FormelWhen the starting aromatic compound is hexafluorobenzene, the products of the reaction possess the general formula
n „ /y-· π ■» ' κ η t: in τ; \
CeJ-e-n(C2b5)„ bzw. eefe-n(C3fr 7)„, n "/ y- · π ■» 'κ η t: in τ; \
C e J- e - n (C 2 b5) "or e e f e - n (C 3 fr 7 )",
worin η eine Ganzzahl von 1 bis 6 ist.where η is an integer from 1 to 6.
Wenn die aromatische Ausgangsverbindung ein Fluorchlorbenzol ist, ist es nicht möglich, mehr als eine begrenzte Anzahl von Perfluoralkylgruppen einzuführen, da die an den * Benzolkern gebundenen Chloratome durch die Perfluoralkylgruppen aktiviert werden und dazu neigen, selbst entfernt zu werden. Bei Pentafluorchlorbenzol z. B. ist es nicht möglich, mehr als drei Perfluoräthylgruppen einzuführen, ohne Chlor zu entfernen und den Katalysator zu desaktivieren. In entsprechender Weise kann man bei Tetrafluordichlorbenzol nicht mehr als zwei Perfluoräthylgruppen ohne Verlust an Chlor einführen.If the starting aromatic compound is a fluorochlorobenzene, it is not possible to use more than to introduce a limited number of perfluoroalkyl groups, since those bound to the * benzene nucleus Chlorine atoms are activated by the perfluoroalkyl groups and tend to be removed by themselves. For pentafluorochlorobenzene z. B. it is not possible to introduce more than three perfluoroethyl groups without Remove chlorine and deactivate the catalyst. In a corresponding manner, one can use tetrafluorodichlorobenzene do not introduce more than two perfluoroethyl groups without loss of chlorine.
Wenn Tetrafluoräthylen und Octafluortoluol als aromatische Ausgangsverbindung verwendet werden, haben die Produkte die allgemeine Formel fluorpropen das Perfluorolefin ist, erfolgen analoge Reaktionen, und Perfluorpropylgruppen werden an die aromatischen Kerne gebunden, doch ist im allgemeinen das Ausmaß der durch Perfluorpropylgruppen erreichten Substitution geringer als das durch Perfluoräthylgruppen erreichte.If tetrafluoroethylene and octafluorotoluene are used as aromatic starting compounds, if the products have the general formula fluoropropene, which is perfluoroolefin, analogous ones are used Reactions, and perfluoropropyl groups are attached to the aromatic nuclei, but is generally the extent of the substitution achieved by perfluoropropyl groups is less than that by perfluoroethyl groups reached.
Die Produkte des erfindungsgemäßen Verfahrens reichen von Flüssigkeiten mit Siedepunkten unterhalb 150° C bis zu Feststoffen mit Schmelzpunkten über 200°C. Einige davon sind thermisch stabile Flüssigkeiten, die sich zur Verwendung als Schmiermittel, Kühlmittel und Wärmeleitungsmedien eignen. Andere sind wertvolle Zwischenprodukte zur Herstellung von Verbindungen, deren Moleküle hochgradig fluoriert sind und reaktive Gruppen enthalten, und demgemäß wertvolle Merkmale besitzen, z. B. oberflächenaktive Eigenschaften.The products of the process of the invention range from liquids with boiling points below 150 ° C to solids with melting points above 200 ° C. Some of them are thermally stable liquids, which are suitable for use as lubricants, coolants and heat transfer media. Other are valuable intermediates for the production of compounds whose molecules are highly fluorinated are and contain reactive groups, and accordingly have valuable features, e.g. B. surface-active Properties.
Die folgenden Beispiele erläutern die Erfindung.The following examples illustrate the invention.
B e 1 s ρ 1 e 1 1 .B e 1 s ρ 1 e 1 1.
70 g Tetrafluoräthylen wurden in eine Suspension· von 5 g trockenem Kaliumfluorid in 50 g Hexafluorbenzol und 150 ml trockenem Dimethylformamid, die in einem mit einem Rührer ausgestatteten Autoklav enthalten waren, destilliert. Der Autoklav wurde auf 155°C erhitzt und 6 Stunden bei dieser Temperatur gehalten, während welcher Zeit der Druck von 33,7 auf 2,81 kg/cm2 fiel. Der Autoklav wurde gekühlt und der Inhalt filtriert, um 6 g eines festen Produktes zu ergeben, das in Wasser, Dimethylformamid und Benzol unlöslich war, und nur Kohlenstoff und Fluor enthielt und bei 200 bis 210° C schmolz und eine empirische Formel von etwa C6Fe(C2F4)6 hatte. Die Umkristallisation dieser Festsubstanz aus Hexafluorbenzol ergab einen Feststoff vom F. = 2040C, dessen Massenspektrum zeigte, daß er C6(C2F5)e, Perfluorhexaäthylbenzol, war."70 g of tetrafluoroethylene were distilled into a suspension of 5 g of dry potassium fluoride in 50 g of hexafluorobenzene and 150 ml of dry dimethylformamide, which were contained in an autoclave equipped with a stirrer. The autoclave was heated to 155 ° C. and held at this temperature for 6 hours, during which time the pressure fell from 33.7 to 2.81 kg / cm 2 . The autoclave was cooled and the contents filtered to give 6 g of a solid product which was insoluble in water, dimethylformamide and benzene, and contained only carbon and fluorine, and melted at 200-210 ° C and an empirical formula of about C 6 F e (C 2 F 4 ) 6 had. Recrystallization of this solid from hexafluorobenzene gave a solid, mp = 204 0 C, the mass spectrum showed that it was 6 C (C 2 F 5) e, Perfluorhexaäthylbenzol. "
Das Einengen des Filtrats aus der Umkristallisation ergab einen Feststoff mit einem tieferen Schmelzpunkt, der CeF(C2F5)5 entsprach.Concentration of the filtrate from the recrystallization gave a solid with a lower melting point corresponding to C e F (C 2 F 5 ) 5.
Das flüssige Filtrat wurde in Wasser gegossen, gewaschen, abgetrennt und über wasserfreiem Magnesiumsulfät getrocknet und dann fraktioniert destil-Bereich von perfluoräthylbenzolen,The liquid filtrate was poured into water, washed, separated and dried over anhydrous Magnesiumsulfät and then fractionated destil- range of p he fluoräthylbenzolen,
worin η eine ganze Zahl von 1 bis 5 ist, und wenn die aromatische Ausgangsverbindung Decafluordiphenyl ist, haben sie die allgemeine Formelwhere η is an integer from 1 to 5, and when the starting aromatic compound is decafluorodiphenyl, they have the general formula
C12I-10-n(C2h6)„,
worin η eine ganze Zahl von 1 bis 10 ist. Wenn Hexaergab.
Ihre! empirischen Formeln wurden durch Elementaranalyse festgestellt, und ihre Struktur durch
massenspektrographische Analyse und NMR-Messungen betätigt. Die Messungen der kernmagnetischen
Resonanz zeigten auch, daß die hauptsächlichen Isomeren
von C6F4(C2F5)21,4-Perfluordiäthylbenzol, von
CeF3(C2F5)3 1,3,4-Perfluortriäthylbenzol und von
C„F2(C2F5)41,2,4,5-Perfluortetraäthylbenzol waren.C 12 I- 10 - n (C 2 h 6 ) ",
where η is an integer from 1 to 10. When Hexa gave up. Your! empirical formulas were determined by elemental analysis, and their structure confirmed by mass spectrographic analysis and NMR measurements. Nuclear magnetic resonance measurements also showed that the main isomers of C 6 F 4 (C 2 F 5 ) 2 1,4-perfluorodiethylbenzene, of C e F 3 (C 2 F 5 ) 3 1,3,4-perfluorotriethylbenzene and of C “F 2 (C 2 F 5 ) 4 were 1,2,4,5-perfluorotetraethylbenzene.
Es wurden folgende Ausbeuten erhalten: The following yields were obtained:
C6F6(C2F5) etwa 10 gC 6 F 6 (C 2 F 5 ) about 10 g
CeF4(C2F5)2 etwa 12 gC e F 4 (C 2 F 5 ) 2 about 12 g
C6F3(C2F6)3 etwa 12 gC 6 F 3 (C 2 F 6 ) 3 about 12 g
C6F2(C2Fs)4 etwa 5 gC 6 F 2 (C 2 Fs) 4 about 5 g
CeF1(C2F6)S etwa 2 gCeF 1 (C 2 F 6 ) S about 2 g
B e i s ρ i e 1 2B e i s ρ i e 1 2
100 g Tetrafluoräthylen, 50 g Hexafluorbenzol, 3 g trockenes Caesiumfluorid und 100 ml trockenes Dimethylformamid wurden miteinander bei 1000C in einem Rührautoklav 4 Stunden erhitzt, wonach der100 g of tetrafluoroethylene, 50 g of hexafluorobenzene, 3 g of dry cesium fluoride and 100 ml of dry dimethylformamide were heated at 100 0 C in a stirred autoclave 4 hours with each other, after which the
Claims (1)
Autoklav, wurde auf 10°C erhitzt und der Inhalt p .
gerührt. Innerhalb von 6 Stunden fiel der Druck von 50 mtentansprucn:
23,2 kg/cm2 auf 3,52 kg/cm2, und die Reaktion wurde Verfahren zur Herstellung von neuen aromatidann beendet. Der Inhalt des Autoklavs wurde in sehen Verbindungen, die kernständige Perfluor-Wasser gegossen und die untere Schicht abgetrennt alkylgruppen enthalten, dadurch gekenn- und destilliert. Das Destillat wurde der Gasphasen- zeichnet, daß man Hexafluorbenzol, Penta-Chromatographie unterworfen, um es in seine ver- 55 fluorchlorbenzol, Tetrafluordichlorbenzol, Octaschiedenen Komponenten aufzutrennen, und bei fluortoluol, Decafluordiphenyl, Octafluornaphthadiesen wurde durch Elementaranalyse und massen- lin oder Decafluoranthracen mit Tetrafluoräthylen spektrographische Analyse gefunden, daß sie alle oder Hexafluorpropen in Gegenwart von Alkalifünf möglichen Pentafluoräthylperfluortoluole von fluoriden oder Tetraalkylammoniumfluoriden als C6F4(C2F5)CF3 bis Ce(C2F5)5CF3 enthielten. Ihre So ionische Katalysatoren je nach den eingesetzten Strukturen wurden durch die Messung der NMR- Ausgangsstoffen bei Temperaturen bis zu 250°C Spektren bestätigt. im geschlossenen Gefäß umsetzt.20 g of octafluorotoluene, 50 ml of dry diethylene- 45 and the mass spectrographic analysis and the glycol dimethyl ether and 2 g of dry cesium fluoride measurement of the NMD spectra proved to be C 12 F 4 (C 2 F 5 ) 6 . . were placed in a dry autoclave, and smaller amounts of Ci 2 F 2 (C 2 F 5 ) 8 were then 60 g of tetrafluoroethylene were distilled in. Der and C 12 (C 2 F 5 ) 10 are formed.
Autoclave, was heated to 10 ° C and the contents p .
touched. Within 6 hours the pressure dropped from 50 meters.
23.2 kg / cm 2 to 3.52 kg / cm 2 , and the reaction was then terminated in the process of producing new aromatics. The contents of the autoclave were identified and distilled in the form of compounds which were poured into nuclear perfluoro water and the lower layer contained separated alkyl groups. The distillate was drawn in the gas phase by subjecting hexafluorobenzene, penta-chromatography to separate it into its fluorochlorobenzene, tetrafluorodichlorobenzene, octahidene components, and in the case of fluorotoluene, decafluorodiphenyl, octafluoronaphthadiesen, tetrafluorofluoroacethylene or decafluoro-fluoro-acetylene with elemental analysis and weight analysis Spectrographic analysis found that they contained all or hexafluoropropene in the presence of alkali five possible pentafluoroethyl perfluorotoluenes of fluorides or tetraalkylammonium fluorides as C 6 F 4 (C 2 F 5 ) CF 3 to C e (C 2 F 5 ) 5 CF 3 . Their so ionic catalysts, depending on the structures used, were confirmed by measuring the NMR starting materials at temperatures of up to 250 ° C spectra. implemented in a closed vessel.
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