Phthaloyl fluoride

Disodium hexafluorosilicate converts phthaloyl chloride into phthaloyl fluoride in 51.5 % yield.15 Disodium and barium hexafluorosilicate can be used for the preparation of chloro-fluoromethanes. Thus, heating carbon tetrachloride with disodium hexafluorosilicate or barium hexafluorosilicate in an autolave under high pressure gives a mixture where dichlorodi-... 

More powerful nitrite scavengers than phthaloyl chloride can improve the yield of the fluoroaro-matic compound. In this regard, phthaloyl fluoride (2) or tetrafluorophthaloyl fluoride, which are easy to prepare from inexpensive sources, are very reactive nitrite anion trapping agents, even for more activated aromatic substrates, suppressing the side reactions initiated by the nitrite ion. " ... 

Several interesting fluoroaromatic derivatives, e.g, 3, can be obtained in good to excellent yield by fluorodenitration with potassium fluoride in sulfolane using phthaloyl fluoride (2) or tetrafluorophthaloyl fluoride as nitrite ion traps. 1,2-Difluorobenzenes 4 are formed from 1 -fluoro-... 

Webster also prepared a-hydroxyl-PMMA by GTP initiated by Me2C=C(OSiMe3) OCHiCHiOSiMes followed by deprotection of the a-end-group by fluoride-catalyzed methanolysis. Again, coupling of PMMA with phthaloyl fluoride prior to deprotection is... 

X Y1 Y2 KF (Equiv) Phthaloyl Fluoride (Equiv) Temp ( C) Time (h) Conversion8 (%) Yield11 (%)... 

Tetramelhylammonium chloride (0.3 0.7 mol equiv) was added. d Tctrafluorophthaloyl fluoride was used instead of phthaloyl fluoride. 

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