| Patents for C07C 225 - Compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly-bound oxygen atoms not being part of a cho group, e.g. amino ketones (4,302) | |
|---|---|
| 01/1976 | |
| 01/20/1976 | US3933803 New beta-aminoketone derivatives |
| 01/06/1976 | US3931253 From a nitroanthraquinone, hydrogenation, raney catalyst |