HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Fluoroaniline → HCID 59026788, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Fluoroaniline | HCID 9584 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Reactant | 3-Bromo-5-fluoropyridine-4-carboxylic acid | HCID 50990491 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59026788 | HCID 59026788 | 74.2% |
Reaction Steps
Lithium bis(trimethylsilyl)amide (54.6 mL, 1.0 M in THF, 54.6 mmol) was added to a solution of 2-fluoro aniline (3.5 mL, 36.4 mmol) in THF (100 mL) at −78° C. The resulting solution was for 1 h at −78° C. 3-Bromo-5-fluoro-isonicotinic acid (1) (4.0 g, 18.2 mmol) was added as a solid, and the reaction solution was stirred for 48 h at room temperature. The reaction solution was concentrated via rotary evaporation, diluted with satd. NaHCO3, and washed with EtOAc. The aqueous solution was acidified with concentrated HCl. The resulting precipitate was filtered, washed with H2O, and dried under vacuum to afford the desired product (4.2 g, 74%) as a yellow solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08076486B2 |
| Source dataset | uspto-grants-2011_12 |
| ORD ID | ord-d0f8b83f382e40cc9581ca5ec792bd47 |
| Source note | uspto-grants-2011_12 |