Mono-and difluoromethyl radicals

Tedder and Walton [286] reviewed the kinetics of the reactions of halogenomethyl radicals in 1967. As regards mono- and difluoromethyl radicals, most of the data given in Table 24 have been obtained since that time. The commercial availability of the corresponding ketones, difluoro- 

Metathetical reactions of mono and difluoromethyl radicals transfer of hydrogen atoms 

Another interesting problem concerning these radical combination reactions arises owing to the presence of the halogen atoms. The dimer 

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The kinetic data on the relative rate of the C—R bond homolytic cleavage from radical 30 relative to that of the C—CH3 bond reveal also the relative stability of fluoro-substituted methyl radicals to the methyl radical (Scheme 1.72). Mono- and difluoromethyl radicals were formed from 30 preferentially in comparison with methyl radicals. Here again, mono- and difluoro-substitutions in a-substituted methyl radicals seem to stabilize the radicals [29]. 

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