Fluonnation with

Fluonnation with Diethylammosulfur Tnfluonde and Related Aminofluoro sulfuranes... 

Perfluorinated organic bromides can be oxidatively fluonnated with elemental fluorine to derivatives containing tn- [124] and pentavalent [/25 126 127] bromine in yields up to 42% Perfluoroheptylbromine tetrafluoride has been used to fluonnate double bonds in halogenated alkenes [127]... 

The heterocyclic system bimane produces a difluorinated product on fluonnation with acetyl hypofluorite [34] (equation 11)... 

Preparative Fluonnations with Molecular Fluorine Vvplel, H... 

When there is an o.-hydrogen in the sulfide, the sulfuranes are unstable and cannot be isolated [775]. Sulfoxides [116] and sulfinylfluorides [117] are oxidatively fluonnated with fluorine to give hexavalent sulfur compounds in yields up to 90%. 

Of alicyclic compounds, fluorination of cyclopentane and cyclohexane has been sufficiently investigated in the past. Cycloheptane on fluonnation with cobalt trifluoride gives a mixture of highly fluonnated and perfluorinated cycloheptanes and methylcyclohexanes [/2] (equation 12). 

Fluonnations with DAST proceed with high chemoselectivity In general, under very mild reaction conditions usually required for the replacement of hydroxyl groups, other functional groups, including phenolic hydroxyl groups [112], remain intact This provides a method for selective conversion of hydroxy esters [95 97] (Table 6), hydroxy ketones [120, 121], hydroxy lactones [122, 123], hydroxy lactams [124] and hydroxy nitriles [125] into fluoro esters, fluoro ketones, fluoro lactones, fluoro lactams, and fluoro nitriles, respectively (equations 60-63)... 

Highly fluorinated tertiary alcohols usually give olefins on fluonnation with sulfur tetrafluonde [759/, but in certain cases, replacement of the hydroxyl group with fluorine occurs under mild conditions Hexafluoro-2-arylpropan-2-ols react with sulfur tetrafluonde at low temperatures to give high yields of heptafluoro-lsopropylarenes [769] (equation 77), and similarly, 3,8 dihydroxy 9,9,9,10,10,10-hexafluoro-p-menthane affords 3,8,9,9,9,10,10,10-octafluoromenthane [769] (equation 78)... 

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