FIELD: chemical industry; method of dehydrofluorination of aromatic carbomyl fluoride.
SUBSTANCE: the invention presents a method of dehydrofluorination of aromatic carbomyl fluoride, which allows to transfer from aromatic carbomyl fluoride to a corresponding isocyanate. The method provides, that above indicated carbomyl fluoride is subjected to action of a temperature at least equal to 80°C and the highest temperature equal to 150°C in a dissolvent, so that at the above indicated temperature, at least of 80°C the indicated carbomyl fluoride is in the dissolvent in a dissolved state or a finely dispersed state, and so that this dissolvent is selected from dissolvents capable to be mixed with hydrofluoric acid and having a boiling point at least of 100°C.
EFFECT: the invention allows to transfer from aromatic carbomyl fluoride to a corresponding isocyanate.
15 cl, 2 ex, 1 tbl
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