HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (3,5-Dibromo-4-methylphenyl)methanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Methyl 3,5-dibromo-4-methylbenzoate | HCID 624016 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | (3,5-Dibromo-4-methylphenyl)methanol | HCID 60156325 | 72.9% |
Reaction Steps
A mixture of methyl 3,5-dibromo-4-methylbenzoate (15 g, 48.706 mmol), NaBH4 (5.53 g, 146.18 mmol) and absolute ethanol (175 mL) was heated to reflux for 4 h. The mixture was cooled, followed by acidification with 2N HCl. The solids were filtered through celite and rinsed with EtOAc. The filtrate was poured onto water and extracted. The organic layer was washed with brine and dried (Na2SO4). Chromatography (Hexanes/EtOAc) afforded (3,5-dibromo-4-methyl-phenyl)-methanol (9.94 g) as a white solid. 1H NMR (400 MHz, d6-DMSO) δ: 2.48 (s, 3H), 4.45 (d, 2H), 5.38 (t, 1H), 7.57 (s, 2H) ppm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08044041B2 |
| Source dataset | uspto-grants-2011_10 |
| ORD ID | ord-4f30819e3f114251b81fcbc8592ced18 |
| Source note | uspto-grants-2011_10 |