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《Journal of fluorine chemistry》1987,37(3):397-404
The preparation of Cs+CF3SF4− is reported. The new salt is characterized by vibrational (IR, RA) and nuclear magnetic resonance (19F, 13C) spectra. 相似文献
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Carl G. Krespan 《Journal of fluorine chemistry》1988,40(2-3):129-137
F-Alkyliron tetracarbonyl iodides are convenient sources of terminal vinyl iodides by a simple pyrolytic technique. The precursors to the F-alkyliron tetracarbonyl iodides, an F-alkyl iodide and iron pentacarbonyl, can be used to generate F-alkyl radicals capable, for example, of F-alkylating benzene in moderate yield. Mechanisms for these transformations are proposed. 相似文献
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Hans-Joachim Nees Uwe Bergstrßer Heinrich Heydt Manfred Regitz 《Heteroatom Chemistry》1993,4(5):525-530
The (diazoalkyl)phosphanes 4a–e undergo [4 + 1]-cycloaddition reactions with the tetrahalo-orthobenzoquinones 5a,b to furnish the previously unknown (diazoalkyl)phosphoranes 6a–h . The structure of product 6h has been investigated by X-ray crystallography. 相似文献
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(CF3)4Te is formed from the reaction of (CF3)2TeCl2 with (CF3)2Cd·glyme in CH3CN at ?10°C via the intermediate (CF3)3TeCl as a yellow liquid and identified by n.m.r. and mass spectra. 相似文献
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G. Giusti G. Geier A. Currao R. Nesper 《Acta Crystallographica. Section C, Structural Chemistry》1996,52(8):1914-1917
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1-[(Dimethylamino)methyl]pyrrole from Trimethyl (1-pyrrolyl)ammonium Ion Trimethyl (1-pyrrolyl)ammonium iodide ( 5a ) and the corresponding p-toluene-sulfonate 5b are transformed by strong bases into 1-[(dimethylamino)methyl]-pyrrole ( 9 ), i.e. into a N-Mannich base, a type of compound novel in the pyrrole series. In this reaction, which is very fast in DMSO, the cation of compounds 5 is deprotonated to form the nitrogen ylide 6 . The latter undergoes a Stevens-type rearrangement to 9 . Several facts, namely the negative outcome of a cross-reaction experiment with 3,4-dimethylpyrrole and of an attempt to obtain 9 from pyrrole and dimethyl (methylidene)ammonium iodide in the presence of one equivalent of sodium methoxide, as well as unsuccessful CIDNP studies point to a rearrangement mechanism via the contact ion pair 12 . 相似文献