HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → Benzenamine, 3-bromo-4-methyl-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Stannous chloride dihydrate | HCID 61436 | — |
| Reactant | 2-Bromo-4-nitrotoluene | HCID 82189 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | Benzenamine, 3-bromo-4-methyl- | HCID 82187 | 100% |
Reaction Steps
To a solution of 2-bromo-4-nitrotoluene (50 g, 0.231 mol in ethylacetate (330 mL) and Ethanol (150 mL) was added Tin(II)chloride dihydrate (208 g, 0.924 mol) portionwise. The reaction mixture was stirred at room temperature overnight. The solution was then treated with potassium carbonate until pH=7 and filtered over celite. The filtrate was washed with water, aqueous NaHCO3, water and brine, dried (Mg2SO4), filtered and evaporated to give 42.71 g (100%) of 3-bromo-4-methylaniline. 1H NMR (300 MHz; CDCl3): 2.27 (s, 3 H), 3.57 (br s, 2 H), 6.54 (dd, J=2.7 Hz and 8.1 Hz, 1 H), 6.90 (d, J=2.1 Hz, 1 H), 6.98 (d, J=8.1 H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07265139B2 |
| Source dataset | uspto-grants-2007_09 |
| ORD ID | ord-dcd8769e642743acbd3e171f7fe5b573 |
| Source note | uspto-grants-2007_09 |