HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 5-Bromo-2-methoxyaniline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 4-Bromo-2-nitroanisole | HCID 118533 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 5-Bromo-2-methoxyaniline | HCID 3585328 | 72.2% |
Reaction Steps
A stirred mixture of 4-bromo-2-nitroanisole (98.56 g) and iron powder (113.7 g) in ethanol (1.51) was heated to reflux and treated dropwise with hydrochloric acid (350 ml, 0.5N) over 1 hour. After refluxing for a further 3 hours the reaction mixture was cooled to room temperature then filtered through hyflosupercel. The filtrate was evaporated and the residue was treated with saturated sodium bicarbonate solution (21 ) then filtered. The solid was washed with water then recrystallised from cyclohexane to give the title compound (61.98 g) as a pale brown solid, m.p. 93-93° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06303600B1 |
| Source dataset | uspto-grants-2001_10 |
| ORD ID | ord-a0c2b77fab6141fd9451f555a8d1450e |
| Source note | uspto-grants-2001_10 |