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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridine-3-sulfonyl chloride hydrochlorideHCID 12571517—
ReactantHCID 58477328HCID 58477328—
SolventPyridineHCID 1049—
ProductHCID 58477224HCID 5847722431.4%

Reaction Conditions

Temperature80 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987258B2
Source datasetuspto-grants-2015_03
ORD IDord-045ee6f27d454752972e1fcf763b8c78
Source noteuspto-grants-2015_03