HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → 4-Bromo-3-chloro-2-methylaniline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | N-(4-Bromo-3-chloro-2-methylphenyl)acetamide | HCID 86376 | — |
| Solvent | Sulfuric acid hydrate (1:1) | HCID 21910475 | — |
| Product | 4-Bromo-3-chloro-2-methylaniline | HCID 7171911 | — |
Reaction Steps
A solution of N-(4-bromo-3-chloro-2-methyl-phenyl)-acetamide (3.37 g, 12.80 mmol) in H2SO4: H2O (1:1) was refluxed for 3 hours. The reaction mixture was cooled to room temperature and neutralized with NaOH and extracted with Et2O (3×150 mL). The combined organic phases were washed with H2O (3×100 mL) and brine (1×100 mL), then dried over MgSO4 and concentrated. Purification by column chromatography using hex:EtOAc (4:1) as the eluant afforded the title aniline. Spectroscopic data: 1H NMR (300 MHz, CDCl3) δ 2.31 (s, 3H), 3.93 (br s, 2H), 6.47 (d, J=8.79 Hz, 1H), 7.24 (d, J=7.91 Hz, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08557853B2 |
| Source dataset | uspto-grants-2013_10 |
| ORD ID | ord-e956ed13305c48259b6e0bd74dc076a1 |
| Source note | uspto-grants-2013_10 |