Fluorination with cesium fluoroxysulfate. Room temperature fluorination of benzene and naphthalene derivatives

1985 ◽  
Vol 50 (19) ◽  
pp. 3609-3612 ◽  
Author(s):  
Stojan Stavber ◽  
Marko Zupan
Author(s):  
R.A. Appleton ◽  
C.R. Enzell ◽  
B. Kimland

AbstractTobacco from Serres, Greece, has been studied with respect to the content of unsaturated hydrocarbons. The isolation of these constituents involved as a key step distillation with the aid of a new technique using carbon dioxide as carrier gas and total condensation of this and the distillate at liquid nitrogen temperature. In addition to the main constituent, neophytadiene, the unsaturated hydrocarbon fraction was shown to contain a series of aromatic compounds. These were examined by means of gas chromatography on capillary columns and also by gas chromatography in combination with mass spectrometry. Fractions were examined before and after elimination of smaller amounts of accompanying olefinic material with the aid of osmium tetroxide. The aromatic constituents were found to be alkylated benzene and naphthalene derivatives, of which many have been identified unambiguously. The vast majority of these have not previously been encountered in tobacco. Several have, however, been detected in smoke and the present results therefore show that these compounds are not necessarily formed solely in the pyrolysis process


1978 ◽  
Vol 56 (1) ◽  
pp. 99-103 ◽  
Author(s):  
Victor P. Abegg ◽  
Alan C. Hopkinson ◽  
Edward Lee-Ruff

A series of cyclobutanones 1–5 were found to rearrange to β-tetralones 6–10, respectively, in the presence of phosphorous pentoxide in benzene at room temperature. The structures of the β-tetralones were inferred by conversion of a number of these known naphthalene derivatives. Possible mechanistic pathways are discussed.


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