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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 401777Generated: November 1, 2026

Hydrochloric Acid → HCID 57732040, compound

https://huagongshe.com/reaction/401777

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-Amino-5-chlorothiazole hydrochlorideHCID 148743—
Reactant2-chloro-4-(chlorosulfonyl)benzoic acid methyl esterHCID 18629027—
SolventPyridineHCID 1049—
ProductHCID 57732040HCID 5773204022%

Reaction Steps

To a solution of 2-amino-5-chlorothiazole hydrochloride (2.62 g, 15.3 mmol, 3 eq) in pyridine (10 ml) was added methyl 4-(chlorosulfonyl)-2-chlorobenzoate (2.28 g, 5.1 mmol, 1 eq) portionwise and the reaction mixture stirred at room temperature for 1 hour. The solution was added to 6M HCl (40 ml) and the resultant precipitate collected by filtration. The crude material was triturated with t-butylmethyl ether to yield the title compound (410 mg, 1.1 mmol, 22%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08741934B2
Source datasetuspto-grants-2014_06
ORD IDord-54cdbce37fe54f38a10572c6bf7cdff5
Source noteuspto-grants-2014_06