HuagongsheHuagongshe Chemistry Print Report · For research reference only
Dimethylformamide → 2-(4-Bromo-2-fluoro-phenoxy)-2-methyl-propionic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Bromobutyrate | HCID 152317 | — |
| Reactant | 4-Bromo-2-fluorophenol | HCID 2724981 | — |
| Product | 2-(4-Bromo-2-fluoro-phenoxy)-2-methyl-propionic acid methyl ester | HCID 57527272 | 77% |
Reaction Conditions
| Temperature | 100 °C |
|---|
Reaction Steps
To a solution of 4-Bromo-2-fluorophenol (1 g, 5.24 mmol) and methyl □-bromobutyrate (1.89 g, 10.47 mmol) in DMF (20 mL) was added K2CO3 (3.6 g, 26 mmol). The resultant slurry was heated to 100° C. under argon for 12 h. DMF was evaporate and residue partitioned between EtOAC and 1N HCl. The organic layer was washed with H2O, and brine then dried over Na2SO4. The solvent was removed in vacuo and the residue was purified by flash column chromatography (10% EtOAc in hexanes) to provide the desired product (1.17 g, 77%) as a white solid. 1H NMR (CDCl3) δ: 1.57 (s, 6H), 3.79 (s, 3H),), 6.86 (t, J=8.7, 1H), 7.12-7.16 (m, 1H), 7.23-7.27 (m, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07473790B2 |
| Source dataset | uspto-grants-2009_01 |
| ORD ID | ord-f4cdaa5989db4fbaaf844d15ffcd3686 |
| Source note | uspto-grants-2009_01 |