Method for dehydrogenofluorination of an aromatic carbamoyl...

Details Method for dehydrogenofluorination of an aromatic carbamoyl... Method for dehydrogenofluorination of an aromatic carbamoyl...

2007-11-06

2007-11-06

Puttlitz, Karl (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

Reexamination Certificate

active

10019694

ABSTRACT:
A method for dehydrogenofluorination for transforming an aromatic carbamoyl fluoride into a corresponding isocyanate, is provided. The method includes subjecting a carbamoyl fluoride to a temperature not less than 80° C. in a solvent wherein the carbamoyl fluoride is in a dissolved or finely dispersed state in the solvent. The method is applicable to organic synthesis.

REFERENCES:
patent: 3860623 (1975-01-01), Zanker et al.
patent: 955 898 (1964-04-01), None
R. Appel et al.,Chemische Berichte, vol. 107, (1974), pp. 2671-1674; XP002133040 Weinheim, DE.

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