HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 4-Methyl-2-(trifluoromethyl)aniline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1,4-Dioxane | HCID 31275 | — |
| Reactant | 4-Methyl-1-nitro-2-(trifluoromethyl)benzene | HCID 13455432 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Water | HCID 962 | — |
| Product | 4-Methyl-2-(trifluoromethyl)aniline | HCID 2737710 | 86.3% |
Reaction Steps
100 g of iron fillings are heated to 95° C. in 300 ml of water, 5 ml of hydrochloric acid and 5 ml of dioxane in a stirred vessel, and 57 g of 2-nitro-5-methylbenzotrifluoride are added dropwise in the course of about 1 hour. The mixture is stirred for a further 2 hours, and a distillation is then carried out using steam. The organic material extracted with dichloromethane and re-distilled. 42 g (boiling point: 92°-95° C./20 mbar) of 2-trifluoromethyl-4-methylaniline are obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04749813 |
| Source dataset | uspto-grants-1988_06 |
| ORD ID | ord-803b3e8da6c14466a4316cba997ef9ae |
| Source note | uspto-grants-1988_06 |