Hypofluorites, photolysis

The diacyl peroxide has been used as a source of FC02-radicals. Fluorination of the peroxide by photolysis with F2 gives access to the acyl hypofluorite, FC(0)0F, bp ca. —55 °C, in reasonable yields. The acyl hypofluorite is a precursor to a cyclic isomer, the simplest perfluorodioxirane, CF2O2, made by the method shown in equation (59). ... 

However, single-electron transfers promoted by photolysis, are the most Ukely processes when CF3OF is used as the fluorinating reagent [93], Examples of the use of hypofluorites for conversion of C—H to C—F bonds are given in Table 3.3. 

Ultraviolet photolysis (230-400 nm) of trifluoromethyl hypofluorite in dilute argon matrices at 8 K gave carbonyl difluoride as the only product observable by infrared spectroscopy, equation (13.9), and with no evidence for the formation of the peroxide CF3OOCF3. The subsequent photodissociation of the molecular fluorine produced results in the production of fluorine atoms, which are sufficiently mobile to escape the argon matrix cage [1902]. 

E.S.R. Studies.—E.s.r. studies have been carried out on the u.v. photolysis of aqueous H202,402 on the photochemical reactions of hypofluorites with SOF2 and... 

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