Photochemical Synthesis and NMR Analysis of Novel Regiospecifically Trifluoromethyl-Substituted Dibenzosemibullvalene (CROSBI ID 116678)
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Vikić-Topić, Dražen ; Lončar, Linda ; Lukić, T ; Mintas, Mladen
engleski
Photochemical Synthesis and NMR Analysis of Novel Regiospecifically Trifluoromethyl-Substituted Dibenzosemibullvalene
Preparation of the novel regiospecific bis(trifluoromethyl-substituted dibenzobarrelene (2) and dibenzosemibullvalene (3) is described. The stereostructure of compounds of 2 and 3 has been deduced on the basis of their 1H, 19F and 13C 1D/2D NMR spectra. Three-bond C-F couplings were used as a structural probe while the longest C-F coupling observed was over four bonds.
photochemical synthesis; trifluoromethyl-substituted dibenzosemibullvalene; trifluoromethyl-substituted dibenzobarrelene; 1H NMR; 13C NMR; C-F couplings
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