HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 58357226, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Benzenesulfonyl chloride | HCID 7369 | — |
| Reactant | 3-Amino-5-bromo-2-chloropyridine | HCID 21858354 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 58357226 | HCID 58357226 | 51.6% |
Reaction Steps
To a solution of 5-bromo-2-chloropyridin-3-amine (1.00 g, 4.82 mmol) in pyridine (2.41 ml) was dropwise added benzenesulfonyl chloride (0.851 g, 4.82 mmol) at 0° C. The mixture was stirred for 40 min at room temperature and acidified with 1 N HCl. The residue was extracted with EtOAc and the combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated in vacuo to give N-(5-bromo-2-chloropyridin-3-yl)-N-(phenylsulfonyl)benzenesulfonamide (0.606 g, 26% yield) as a white solid. 1H-NMR (CDCl3, Varian 400 MHz) δ 7.02 (1H, s), 7.47-7.56 (2H, m), 7.59-7.66 (1H, m), 7.78-7.86 (2H, m), 8.16 (2H, dd, J=2.4, 7.2 Hz).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09422298B2 |
| Source dataset | uspto-grants-2016_08 |
| ORD ID | ord-a38d2e01823443b698bb65ed2fbc17fc |
| Source note | uspto-grants-2016_08 |