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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1766311Generated: November 4, 2026

2,5-Dichlorobenzoic acid → HCID 21110282, compound

https://huagongshe.com/reaction/1766311

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,5-Dichlorobenzoic acidHCID 5784—
ReactantTriethylamineHCID 8471—
ReactantThiopheneethanamineHCID 116521—
SolventTetrahydrofuranHCID 8028—
SolventThionyl ChlorideHCID 24386—
ProductHCID 21110282HCID 2111028266.7%

Reaction Steps

Reaction of 2,5-dichlorobenzoic acid (164 mg, 0.85 mmol) in thionyl chloride (2 mL) then with 2-thiopheneethylamine (50 μL, 0.42 mmol) in presence of triethylamine (0.5 mL) in THF (3 mL) according to method B gave 2,5-dichloro-N-(2-thiophen-2-yl-ethyl)-benzamide (83 mg, 0.28 mmol, 66% yield) as a off-white powder after purification on silica gel (eluent: EtOAc/hexane 5/95 to 20/80).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07230020B2
Source datasetuspto-grants-2007_06
ORD IDord-070f412b02d64efea31df94f83a165f5
Source noteuspto-grants-2007_06