HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 66671708, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 4-Fluorobenzenesulfonyl chloride | HCID 9588 | — |
| Reactant | 3-Amino-5-bromopyridine | HCID 817681 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Sodium Bicarbonate | HCID 516892 | — |
| Product | HCID 66671708 | HCID 66671708 | 23% |
Reaction Steps
To a round bottom flask was added 5-bromopyridin-3-amine (0.80 g, 4.6 mmol, Matrix Scientific, Columbia S.C.), ethanol (15 mL) and 4-fluorobenzenesulfonyl chloride (2.2 g, 12 mmol, Fluka, St. Louis, Mo.). The mixture was allowed to stir at ambient temperature overnight. The mixture was diluted with CH2Cl2 and sat. NaHCO3, then the solution was extracted with CH2Cl2 (3×25 ml). The combined extracts were dried over Na2SO4, filtered and concentrated. Purification by silica gel chromatography (10-30% EtOAc/CH2Cl2) afforded the title compound as an off-white crystalline solid (0.35 g, 23% yield). MS (ESI pos. ion) m/z: 333 (M+1). 1H NMR (400 MHz, MeOH-d4) δ ppm 8.35 (s, 1H), 8.22 (s, 1H), 7.83-7.89 (m, 2H), 7.76-7.81 (m, 1H), 7.25-7.32 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07928140B2 |
| Source dataset | uspto-grants-2011_04 |
| ORD ID | ord-b4e5368f30ad48dca7bfb3c10d41c3ea |
| Source note | uspto-grants-2011_04 |