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Perfluoro ... s. a. Trifluoro

No products arising from ring transformations occurred upon photolysis or pyrolysis of perfluoro-(2,4,S,6-tetraisopropylpyrimidine) (256). Hydrolysis (aq. H2SO4 at 150 °C) of tetrafluoropyridazine (270) yields initially 3,4,5-trifluoro-l -pyridazine-6-one (271) and then difluoromaleic hydrazide (272) that of perfluoro-(4,5-di-isopropyIpyridazine) (273) yields a mixture of pyridazone (271) and hydrazide (272), and then bis(heptafluorO isopropyl)maleic anhydride (274) at 210 °C (Scheme 55). ... [Pg.447]

The first examples of formation of a or-complex between a polyfluoro-aromatic compound and F have been reported trifluoro-5-triazine and CsF in tetra-methylene sulphone formed a o--complex which could be isolated and characterized by F n.m.r. spectroscopy. Analogous reactions with perfluoro-mono-and -di-isopropyl-s-triazines gave analogous complexes containing—CF2—, but they were not isolated. [Pg.302]

See other pages where Perfluoro ... s. a. Trifluoro is mentioned: [Pg.266]    [Pg.250]    [Pg.279]    [Pg.266]    [Pg.250]    [Pg.279]    [Pg.231]    [Pg.243]    [Pg.261]    [Pg.299]    [Pg.63]    [Pg.382]    [Pg.355]    [Pg.209]   


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