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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1766326Generated: October 26, 2026

2,5-Dichlorobenzoic acid → 2,5-dichloro-N-(4-chloro-2-methyl-benzothiazol-5-yl)-benzamide

https://huagongshe.com/reaction/1766326

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,5-Dichlorobenzoic acidHCID 5784—
ReactantTriethylamineHCID 8471—
Reactant4-Chloro-2-methylbenzo[d]thiazol-5-amineHCID 11217857—
SolventTetrahydrofuranHCID 8028—
SolventThionyl ChlorideHCID 24386—
Product2,5-dichloro-N-(4-chloro-2-methyl-benzothiazol-5-yl)-benzamideHCID 2111027252%

Reaction Steps

Reaction of 2,5-dichlorobenzoic acid (145 mg, 0.76 mmol) in thionyl chloride (5 mL) then with 4-chloro-2-methyl-benzothiazol-5-ylamine (50 mg, 0.25 mmol) in presence of triethylamine (0.5 mL) in THF (2 mL) according to method B gave 2,5-dichloro-N-(4-chloro-2-methyl-benzothiazol-5-yl)-benzamide (50 mg, 0.13 mmol, 52% yield) as a white powder after purification by chromatography on silica gel(eluent: DCM).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07230020B2
Source datasetuspto-grants-2007_06
ORD IDord-2808113753c240eb9c55d2c9d55b5975
Source noteuspto-grants-2007_06