HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 876527Generated: October 30, 2026
Pyridine-3-sulfonyl chloride hydrochloride → HCID 58477224, compound
https://huagongshe.com/reaction/876527
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pyridine-3-sulfonyl chloride hydrochloride | HCID 12571517 | — |
| Reactant | HCID 58477328 | HCID 58477328 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 58477224 | HCID 58477224 | 31.4% |
Reaction Steps
Pyridine-3-sulfonyl chloride hydrochloride 12 (280 mg, 1.3 mmol) was added to a solution of 8-amino-2-(2-(trifluoromethyl)phenyl)-4H-chromen-4-one 11 (100 mg, 0.328 mmol) in pyridine (5 mL). The reaction mixture was heated at 80° C. for 12 h. The pyridine was removed en vacuo. The residue was taken up in CH2Cl2, washed with sat. aq NaHCO3, dried (MgSO4) and concentrated. The crude residue was purified by MPLC eluting with CH2Cl2/MeOH (0-10%) followed by recrystallization from CH3CN to give Compound 326 (46 mg, 31% yield). MS (ESI) calcd for C21H13F3N2O4S: 446.1. found: 447 [M+H].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08987258B2 |
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| Source dataset | uspto-grants-2015_03 |
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| ORD ID | ord-045ee6f27d454752972e1fcf763b8c78 |
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| Source note | uspto-grants-2015_03 |
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