TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation disclosed: Hydroxyl group of 2-bromo-1-naphthol is substituted with trifluoromethanesulfonic acid and reacted with 2-naphtyl boronic acid or its derivative, to obtain trifluoromethanesulfonic acid 2-(2-naphthyl)-1-naphthyl. Trifluoromethanesulfonic acid 2-(2-naphthyl)-1-naphthyl is reacted with lithium salt of vinylidene fluoride in presence of 2,2-difluoro vinyl zinc chloride N,N,N',N'-tetramethylethylenediamine complex, to obtain dinaphthalene derivative having difluoro vinyl group. The obtained dinaphthalene derivative is defluoridized and ring closed, to obtain compoundable fluorine-containing compound (I). Preferred Definitions:    R1-R6=H.    SPECIFIC COMPOUNDS - 4 Fluorine-containing compounds are disclosed e.g. 13-fluoropicene of formula (Ia), 13-fluoro-3,10-diphenylpicene, 2-(14-fluoro-10-(thiophen-2-yl)picen-3-yl)thiophene, and 3-(14-fluoro-10-(thiophen-3-yl)picen-3-yl)thiophene.    EXAMPLE - In argon atmosphere, 0.5 g 2,2-difluoro-vinyl zinc chloride-N,N,N',N'- tetramethylethylenediamine complex and tetrahydrofuran-diethyl ether solution containing 0.401 g trifluoromethanesulfonic acid 2-(2-naphthyl)-1-naphthyl and palladium chloride (II) and 36 g N,N'- di(2,6-diisopropyl phenyl)imidazolyl-3-chloropyridine complex were added at room temperature and reaction liquid was heated at 80 degrees C for 18 hours. The obtained reaction liquid was filtered and solvent was distilled under reduced pressure, to obtain crude product. The obtained crude product was purified to obtain 0.284 g 1-(2,2-difluoro vinyl)-2-(2-naphthyl)naphthalene with yield of 89%. 16 ml 1,1,1,3,3, 3-hexafluoro isopropyl alcohol was added to suspend 41 mg palladium chloride (II) and 0.120 g trifluoromethanesulfonic acid silver in argon atmosphere. 0.492 g 1-(2,2-difluoro vinyl)-2-(2-naphthyl)naphthalene and 0.192 ml boron trifluoride-diethylether complex were added. The reaction liquid was heated at 60 degrees C for 2.5 hours, cooled to room temperature, and filtered with less amount of silica gel and the solvent was distilled under pressure, to obtain 0.356 g 13-fluoro picene compound.