HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → alpha-(1-Amino-1-methylethyl)benzenemethanol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Benzenemethanol, alpha-(1-methyl-1-nitroethyl)- | HCID 141821 | — |
| Catalyst | Zinc | HCID 23994 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | alpha-(1-Amino-1-methylethyl)benzenemethanol | HCID 26760 | — |
Reaction Steps
37% Hydrochloric acid (1 mL) was added to a stirred solution of 2-methyl-2-nitro-1-phenylpropan-1-ol (26c, 0.12 g, 0.6 mmol in EtOH (10 mL) and water (5 mL). Zinc powder (0.241 g, 3.6 mmol) was slowly added in small portions, the mixture was stirred for 4 hours at +70° C. The mixture was filtered to remove solid zinc residues and concentrated to ⅓ volume by evaporation, diluted with water (50 mL) and washed with ether (125 mL). The acidic waterphase was made basic using KOH (aq) solution, the formed slurry was extracted with ether (3×150 mL). The organic phase was dried (MgSO4) filtered and evaporated. The crude product was further purified by HPLC. Yield 60 mg (60%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08030340B2 |
| Source dataset | uspto-grants-2011_10 |
| ORD ID | ord-c2c5bce1d57647128087daefd705d91b |
| Source note | uspto-grants-2011_10 |