HuagongsheHuagongshe Chemistry Print Report · For research reference only
Chlorodifluoromethane → HCID 21852637, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Chlorodifluoromethane | HCID 6372 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 3',5'-Dimethyl-2'-hydroxyacetophenone | HCID 2758561 | — |
| Catalyst | Tetrabutylammonium hydrogen sulfate | HCID 94433 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 21852637 | HCID 21852637 | 21% |
Reaction Steps
10 ml of a 30% aqueous sodium hydroxide solution and 8.5 g (0.025 mol) of tetrabutylammonium hydrogensulphate are added to a solution of 8.2 g (0.05 mol) of 2-acetyl-4,6-dimethylphenol, obtained above in Example XXX, in dichloromethane. A stream of chlorodifluoromethane is then passed into the reaction mixture for 30 minutes and the latter is then stirred at room temperature for 4 hours. The reaction mixture is then extracted with dichloromethane and the extract is washed with water. After drying the organic phase over MgSO4 and evaporation, the residue obtained is purified by passing through a silica column (dichloromethane) to lead to the production of a liquid: (2-difluoromethoxy-3,5-dimethylphenyl)ethanone: yield 21%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05945382 |
| Source dataset | uspto-grants-1999_08 |
| ORD ID | ord-5ef060c277de4a7f95f86c5103556261 |
| Source note | uspto-grants-1999_08 |