C07D 227/08 Oxygen atoms
Introduced: July 1974
Full Title
Full titles differ between systems:
Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom > 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 ring carbon atoms > Oxygen atoms
Heterocyclic compounds containing rings having one nitrogen atom as the only ring hetero atom, according to more than one of groups C07D203/00 - C07D225/00 > with only hydrogen or carbon atoms directly attached to the ring nitrogen atom > 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 ring carbon atoms > Oxygen atoms
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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- C07D 227/087 One doubly-bound oxygen atom in position 2, e.g. lactams since 1980 IPC+CPC Available in IPC and CPC
- C07D 227/093 Two doubly-bound oxygen atoms attached to the carbon atoms adjacent to the ring nitrogen atom, e.g. dicarboxylic acid imides since 1980 IPC+CPC Available in IPC and CPC