Conversion of ammonium picrate to m-phenylenediamine, aniline, and primary amines
US5990354A · kind A · utility
2Cited by
4References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 17, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Nov 17, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C213/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Ammonium picrate, Explosive "D", is converted to picric acid, which is then converted to triaminophenol by the conversion of the aromatic nitro groups to amino groups. The triaminophenols are then converted to triaminobenzenes by the removal of the hydroxyl groups and the triaminobenzenes are converted to m-phenylenediamine, aniline, and primary aliphatic amines by the removal of amino groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.