Process for the manufacture of triazolecarboxamide

Details Process for the manufacture of triazolecarboxamide Process for the manufacture of triazolecarboxamide

1994-03-31

1995-07-18

Morris, Patricia L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D24908

Patent

active

054342686

ABSTRACT:
A process for the manufacture of 1-(substituted or unsubstituted)phenyl-5-(substituted or unsubstituted)-phenyl-1H-1,2,4-triazole-3-carboxamide of the formula (I), which comprises heating 2-(substituted or unsubstituted)phenyl-4,5-oxazoledione 4-(substituted or unsubstituted)phenylhydrazone of the formula (II) and ammonia in water according to the following reaction formula, ##STR1## wherein A and B individually represent one or more substituted or unsubstituted phenyl groups. The target compound can be manufactured at a high purity and a high yield without using an organic solvent or an acidic compound.

REFERENCES:
Journal of the American Chemical Society vol. 79, No. 8, 1957, Rearrangement of 4-arylazo-2-phenyloxazolin-5-ones.
Journal of the Chemical Society 1962, London GM, Triazoles. Part IV.

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