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2,3,5,6-Tetrafluoro-4 phenyl ethers

The most convenient substrates for fluorination with tetrafluoro(phenyl)-25-phosphane are silyl ethers of alcohols 7.13 17 The trimethylsilylation of alcohols with chlorotrimethylsilane in the presence of pyridine is generally quantitative. [Pg.501]

Bis[tetrafluoro-4-(trifluoromethyl)phenyl] ether on heating with 20% oleum gives octafluoro-4,4 -oxydibenzoic acid (3).163... [Pg.418]

The mechanism of the formation of organic fluorides from silyl ethers and fluoro-/.5-phosphanes has been studied in some detail for tetrafluoro(phenyl)-25-phosphane.9 The first step, which is usually quantitative at low temperatures, is the formation of an intermediate alkoxyfluoro-25-phosphane 1 and fluorotrimethylsilanc. [Pg.135]

Fluorination of Silyl Ethers with Tetrafluoro(phenyl)-25-phosphane General Procedure 13... [Pg.136]

Ether Bis-[tetrafluoro-4-trifluorome-thyl-phenyl]- E10b2, 418 (Educt)... [Pg.707]

Figure 7.13 l,l-Bis-(4-hydroxyphenyl)-ethyl-l-phenyl-2,3,5,6-tetrafluoro-4-vinylphenyl ether ... [Pg.269]

See other pages where 2,3,5,6-Tetrafluoro-4 phenyl ethers is mentioned: [Pg.76]    [Pg.101]    [Pg.1823]    [Pg.183]    [Pg.293]    [Pg.267]    [Pg.388]    [Pg.400]    [Pg.459]   


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Ethers phenylic

Phenyl Ether

Tetrafluoro

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