HuagongsheHuagongshe Chemistry Print Report · For research reference only
Urea → 4-Nitroaniline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Urea | HCID 1176 | — |
| Reactant | Nitrobenzene | HCID 7416 | — |
| Reactant | P-Phenylenediamine | HCID 7814 | — |
| Product | 4-Nitroaniline | HCID 7475 | — |
| Product | 4-Nitrosoaniline | HCID 69574 | — |
Reaction Steps
To achieve the above object, there is provided a method of preparing p-phenylenediamine including the steps of: reacting urea and nitrobenzene with a base in the presence of a polar solvent to yield 4-nitrosoaniline and 4-nitroaniline; and subsequently, diluting the resulting mixed solution in an alcohol and performing hydrogenation using a catalyst.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06245943B1 |
| Source dataset | uspto-grants-2001_06 |
| ORD ID | ord-6f419591ec6b45079966fc970ae8a78a |
| Source note | uspto-grants-2001_06 |