Zobrazeno 1 - 10
of 66
pro vyhledávání: '"H.J. Frohn"'
Publikováno v:
Journal of Fluorine Chemistry. 77:153-159
Replacement of hydrogen by fluorine and addition of fluorine atoms to the aromatic ring were found in the reaction of XeF2 with 1,2,3,4,5-tetrafluorobenzene (RH, F, Br, NO2) or 1-R-2,3,4,6-tetrafluorobenzene (RH, CF3) in HF or CH2Cl2BF3·OEt
Autor:
V.V. Bardin, H.J. Frohn
Publikováno v:
Journal of Organometallic Chemistry. 501:155-159
Pentafluorophenyltetrafluorosilicates M + [C 6 F 5 SiF 4 ] − were obtained from pentafluorophenyltrifluorosilane C 6 F 5 SiF 3 and ionic fluorides MF (M K, Cs, Me 4 N) in anhydrous MeCN or diglyme. The reactivity of M + [C 6 F 5 SiF 4 ] − tow
Autor:
V.V. Bardin, H.J. Frohn
Publikováno v:
Journal of Fluorine Chemistry. 60:141-151
Compounds of the formula C 6 F 5 MX 3 (MSi, Ge; XCl, Br) react with XeF 2 , exchangingchlorine (bromine) atoms for fluorine. Interaction of C 6 F 5 MX 3 (XF, Alk) with XeF 2 inthe presence of BF 3 ·OEt 2 or with XeF + NbF 6 - proceeds by th
Publikováno v:
ChemInform. 25
Pentafluorophenylxenon(II) hexafluoroarsenate [C 6 F 5 Xe] + [AsF 6 ] − reacts (MeCN, 20 °C) with aromatic compounds C 6 H 5 X (X = CH 3 , F, CF 3 , NO 2 and CN), yielding isomeric mixtures of polyfluorinated biphenyls XC 6 H 4 C 6 F 5 . When X =
Autor:
W. Breuer, H.J. Frohn
Publikováno v:
Journal of Fluorine Chemistry. 47:301-315
Arylbromine(V)tetrafluorides X-C6H4-BrF4 (X = o-F, m-F, p-F, o-CF3, m-CF3, p-CF3, and H) can be prepared by fluorine-aryl - substitution on BrF5 in organic solvents. The influence of different aryl-transfer - reagents, of substituents in the aryl- gr
Publikováno v:
Journal of Fluorine Chemistry. 58:320
Pentafluorophenylxenon(II) hexafluoroarsenate [C 6 F 5 Xe] + [AsF 6 ] − reacts (MeCN, 20 °C) with aromatic compounds C 6 H 5 X (X = CH 3 , F, CF 3 , NO 2 and CN), yielding isomeric mixtures of polyfluorinated biphenyls XC 6 H 4 C 6 F 5 . When X =
Publikováno v:
Journal of Fluorine Chemistry. 58:320
The synthesis of (C6F5)2IF and (C6F5)3I was achieved by using C6F5IF2 as a synthon in fluorine aryl substitution. The new compounds which are stable at room temperature were analytically and spectroscopically characterized. Initial findings of their
Autor:
H.J. Frohn, A. Klose
Publikováno v:
Journal of Fluorine Chemistry. 58:274
Thermal decomposition of [C 6 F 5 Xe] + salts with complex fluoroanions can proceed in two different ways: a crypto-ionic and/or a radical path, depending on temperature and solvent. The intermediate formation of long-lived radical pairs could be est
Publikováno v:
Journal of Fluorine Chemistry. 54:8
After successful preparation and structural characterization of [C 6 F 5 Xe] + -salts we report on the synthesis of monosubstituted phenylxenon cations now. For example. [mCF 3 C 6 H 4 Xe] + is a typical species and allows to investigate the influ
Autor:
A. Priwitzer, H.J. Frohn
Publikováno v:
Journal of Fluorine Chemistry. 54:322
Besides IF 3 no binary iodine(III) oxide or ternary iodine(III) fluoride oxide is known. Now we report on the preparation of an organoiodine(III) fluoride oxide: C 6 F 5 I(F)OI(F)C 6 F 5 ( I ). I is prepared by well-aimed fluorine-oxygen — metathes