HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 3-(Difluoromethyl)-4-fluoroaniline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 2-(Difluoromethyl)-1-fluoro-4-nitrobenzene | HCID 21731070 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 3-(Difluoromethyl)-4-fluoroaniline | HCID 23445076 | 80.1% |
Reaction Steps
A solution of 2-(difluoromethyl)-1-fluoro-4-nitrobenzene (1.2 g, 6.2 mmol) in methanol (20 mL) was added iron powder (4.8 g, 24.8 mmol) followed by conc. HCl (5 mL) dropwise. The reaction mass was stirred at RT for 1-2 h. The reaction mass was quenched in ice-water, basified with NaHCO3 and extracted with DCM. The organic layer was dried and concentrated to afford 0.800 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 5.25 (s, 2H), 6.66-6.73 (m, 2H), 6.86-7.04 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09096545B2 |
| Source dataset | uspto-grants-2015_08 |
| ORD ID | ord-182eba89c9924177b9238e987a6b84f0 |
| Source note | uspto-grants-2015_08 |