Carbonyl fluoride, reactions phosgene

Phosgene can be used as the starting material for the preparation of other potentially useful carbonyl halides and carbonyl pseudohalides. Reaction of phosgene with fluorspar, for example, gives COCIF (see Section 9.1.1 and Chapter 16). With aluminium(III) bromide, COBrj is formed (Section 9.1.2.6). Reaction of COClj with HF gives COFj (see Section 9.10.4 and Chapter 13), reaction with silver cyanide gives carbonyl dicyanide, CO(CN)j (Section 9.1.7), whereas reaction with a mixture of sodium fluoride and HCN gives the mixed carbonyl halide pseudohalide, COFCN (Section 9.1.7 and Chapter 13). The chemistry of these... 

Despite the possibly unfavourable thermodynamics for phosgene polymerization, it may be possible to prepare polyphosgene by alternative routes. Poly(carbonyl fluoride), for example, has been prepared from the reaction of tetrafluoroethene with trioxygen (ozone) (see Chapter 13). Alternatively, the co-polymerisation of phosgene with, for example, alkenes may be worthy of investigation [ICI94]. 

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