Chlorination s. Halogenation Replacement of hydrogen

Chlorination s. Halogenation, Replacement of hydrogen by halogen —, catalytic 12, 599 Chlorine 12, 155 13, 402 ... 

Replacement of hydrogen with halogen can be carried out in the alpha position of fluonnated ethers, amines, aldehydes, or nitriles In 2,2,3,4,4,4 hexafluoro-butyl methyl ether, chlorination occurs predominantly at the methyl, however, bromination occurs mostly at the internal position of the fluorobutyl group 13[Pg.372]

Since the recognition of the role of chlorine in catalytic ozone destruction, increasing effort has been devoted to finding replacements. In most cases reported so far, the replacements are partially halogenated molecules that retain one or more hydrogen atoms (HCFCs and HFC s). The presence of H-atoms gives HO a handle (via H-atom abstractions such as R4) for their tropospheric... 

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