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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 589586Generated: October 29, 2026

Citric Acid → HCID 25012898, compound

https://huagongshe.com/reaction/589586

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantPyridineHCID 1049—
ReactantMethanesulfonyl chlorideHCID 31297—
ReactantHCID 25012739HCID 25012739—
SolventDichloromethaneHCID 6344—
ProductHCID 25012898HCID 2501289887%

Reaction Steps

In reaction (d) methanesulfonyl chloride (0.23 mL, 2.97 mmol) was added to a stirred solution of 16 (800 mg, 2.71 mmol) and pyridine (0.66 mL, 8.1 mmol) in CH2Cl2 (20 mL) at 0° C. After being stirred for 0.5 h, the mixture was poured into 2 M citric acid solution and extracted with EtOAc. The combined extracts were washed with saturated NaHCO3 solution and brine, dried over Na2SO4, and concentrated to produce N-(4-(2-(2-propylpyridin-4-yl)thiazol-4-yl)phenyl)methanesulfonamide 19 (880 mg, 87%) as a yellow foam.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09233941B2
Source datasetuspto-grants-2016_01
ORD IDord-6b7eaa6615ca41c7b89fe9331570f9ec
Source noteuspto-grants-2016_01