Dioxazolone

In organic chemistry, a dioxazolone is a cyclic carbonate incorporated into C₂NO₂ ring. It is an uncommon heterocyclic compound. They arise by the phosgenation of hydroxamic acids:

RC(O)NHOH + COCl₂ → RC=NO₂CO + 2 HCl

Although dioxazolones are often explosive, they are of interest as precursors to isocyanates:

RC=NO₂CO → R-N=C=O + CO₂

Dioxazolones have attracted attention as reagents for the preparation of amides.