Silver carbonyl difluoride

Carbonyl-bis(triphenylphosphine)iridium—silver diperchlorate, 3892 Carbonyl dicyanide, see Oxopropanedinitrile, 1337 Carbonyl difluoride, 0342a Carbonyl diisothiocyanate, 1338 Carbonyl(pentasulfur pentanitrido)molybdenum, 0532 2-Carboxy-3,6-dimethylbenzenediazonium chloride, 3132a Carboxymethyl carbamimoniothioate chloride,... 

The first authentic preparation of carbonyl difluoride in a pure state (c/. Section 13.7.5.4) was described by Ruff and Miltschitsky in 1934, by the interaction of carbon monoxide and silver(II) fluoride [1756]. Although this method still constitutes a convenient... 

Trifluoromethyl hypofluorite was first made by Cady by passing methanol [184] or carbon monoxide [185, 186] with fluorine over silver difluoride at elevated temperatures. Later, trifluoromethyl hypofluorite and higher perfluoroalkyl hypofluorites were prepared by treating the appropriate carbonyl compound with fluorine in the presence of dry caesium fluoride at sub-zero temperatures (Fig. 81) [187-189]. 

Studies on the well known reaction between fluorine and carbon monoxide have revealed that a film of silver fluoride(s) on copper truly is a catalyst for the reaction Fj + CO - COFa, and for subsequent changes producing bistrifluoromethyl peroxide and trifluoromethyl hypofluorite, whereas caesium fluoride is not and since neither copper nor silver iluoride(s) appears to be a good catalyst for the reaction CF3 OF + COFj CFa O O CFg, it has been suggested that the fluorination of carbon monoxide or carbonyl fluoride in the presence of silver difluoride may possibly involve the steps... 

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