Trifluoromethylcarbonimidoyl difluoride

Heating of carbonimidoyl dihalides with amines or amine hydochlorides affords carbodi-imides. For example, heating of trifluoromethylcarbonimidoyl difluoride 120 with amines produces the corresponding trifluoromethyl substituted carbodiimides 121. ... [Pg.29]

Trifluoromethylcarbonimidoyl difluoride can also be obtained from N-halo-bis(trifluoromethyl)amine and iron pentacarbonyl... [Pg.27]

A variety of fragmentation reactions lead to perfluorocarbonimidoyl difluorides. For example, addition of trifluoronitrosomethane to tetra-fluoroethylene yields the oxazetidine derivative LXXV, which upon thermolysis or photolysis ( ) gives trifluoromethylcarbonimidoyl difluoride (LXXVI) and carbonyl fluoride. [Pg.29]

Trifluoromethylcarbonimidoyl difluoride (LXXVI) was also obtained upon heating NF3 and trifluoroacetonitrile over caesium fluoride at 520°C ( ), and via pyrolysis of perfluoroazoalkanes... [Pg.29]

Carbonimidoyl difluorides, such as trifluoromethylcarbonimidoyl difluoride, undergo reaction with silver difluoride to yield perfluoroamines CXXII while with trifluoromethylsulfurpentafluoride the tertiary... [Pg.46]

The addition of carbonyl fluoride to trifluoromethylcarbonimidoyl difluoride to yield the carbamoyl fluoride CXXIV was observed by Fawcett and his colleagues... [Pg.46]

Dimerization involving the C=N double bond occurs readily with perfluorocarbonimidoyl difluorides Thus, the linear dimer CXXV is obtained from trifluoromethylcarbonimidoyl difluoride, and its structure was proven by Young and his co-workers Pyrolysis of CXXV at 500°C regenerates the monomeric carbonimidoyl difluoride ( ). [Pg.46]

The vapor phase oxidation of trifluoromethylcarbonimidoyl difluoride affords N-nitroso-bis(trifluoromethyl)amine and carbonyl fluoride... [Pg.47]

Likewise, trifluoromethyl isocyanate (CXXXI) was obtained from trifluoromethylcarbonimidoyl difluoride by means of water or hydrated fluorides... [Pg.47]

Several recent articles are concerned with the synthesis and reactions of perfluorinated carbonimidoyl difluorides. Glemser and his students ( ) reported the formation of trifluoromethylcarbonimidoyl diiluoride in the reaction of cyanogen chloride and nitrogen trifluoride at 450-500 C. Further work related to the chemistry of perfluoro-bis-carbonimidoyl difluorides has been presented by Ogden and Mitsch For example, photolysis of... [Pg.212]

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