HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 3-Fluoro-7-(2-methoxyethoxy)-2-methylquinoline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 2-Bromoethyl methyl ether | HCID 80972 | — |
| Reactant | 3-Fluoro-2-methylquinolin-7-ol hydrobromide | HCID 136338079 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Product | 3-Fluoro-7-(2-methoxyethoxy)-2-methylquinoline | HCID 70983510 | 90.1% |
Reaction Steps
To a suspension of 3-fluoro-2-methylquinolin-7-ol hydrobromide (0.37 g, 1.43 mmol) and Cs2CO3 (1.08 g, 3.31 mmol) in NMP (6 mL) was added 1-bromo-2-methoxyethane (0.230 g, 1.66 mmol). The reaction mixture was stirred at ambient temperature for 24 hours. Water (10 mL) and toluene (20 mL) were added. The organic layer was separated, washed with brine, dried (sodium sulfate), filtered and concentrated under reduced pressure. The residue obtained was purified by flash chromatography on silica gel (2:1 hexane/ethyl acetate) to give 3-fluoro-7-(2-methoxyethoxy)-2-methylquinoline (0.234 g, 0.995 mmol, 90.1% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08889704B2 |
| Source dataset | uspto-grants-2014_11 |
| ORD ID | ord-0b1c6b0fec774b23a31f7a650ff2f81e |
| Source note | uspto-grants-2014_11 |