Perfluoroalkyl derivatives of nitrogen. Part 47. Reaction of trifluoronitrosomethane and heptafluoro-1-nitrosopropane with dimethyl- or diphenyl-diazomethane : a convenient synthesis of perfluorinated azoxyalkanes
Abstract
Trifluoronitrosomethane and heptafluoro-1-nitrosopropane rapidly attack diphenyldiazomethane in diethyl ether at –78 °C to yield, quantitatively, benzophenone and perfluoro-azoxymethane or -1,1′-azoxypropane respectively; an analogous reaction occurs between the former nitrosoalkane and dimethyldiazomethane. Use of an equimolar mixture of the nitrosoalkanes provides the azoxy-compounds CF3[graphic omitted](Ō):NC3F7-n and n-C3F7[graphic omitted](Ō):NCF3.