Reaction of perfluoro-1-methylindan with SiO2-SbF5 |
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| Authors: | Ya V Zonov T V Mezhenkova V M Karpov V E Platonov |
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| Institution: | (1) Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia |
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| Abstract: | The reaction of perfluoro-1-methylindan with SiO2-SbF5 depending on the amount of SiO2 led to the formation after hydrolysis of the reaction mixture of perfluoro-3-methylindan-1-one, perfluoro-4-methylisochromen-1-one, 6-(1-carboxy-2,2,2-trifluoro-ethyl)-2,3,4,5-tetrafluoro-benzoic and 6-(carboxymethyl)-2,3,4,5-tetrafluorobenzoic acids. Heating in the SbF5 medium perfluoro-1-methylindan in a glass ampoule at 130°C, or perfluoro-3-methylindan-1-one at 70°C provided a solution of a perfluoro-4-methylisochromenium salt that on treating with anhydrous HF was converted into perfluoro-4-methyl-1H-isochromen, and on hydrolysis, into perfluoro-4-methylisochromen-1-one. |
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