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.
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