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IPC Subgroup
C07D 207/444

having two doubly-bound oxygen atoms directly attached in positions 2 and 5

Introduced: January 1980

Last revised: January 2006

Full Title

Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom > having three double bonds between ring members or between ring members and non-ring members > having two doubly-bound oxygen atoms directly attached in positions 2 and 5

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
ORGANIC CHEMISTRY
Subclass:
HETEROCYCLIC COMPOUNDS

2 direct subcodes

Child Classifications

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  • C07D 207/456 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms