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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 559532Generated: October 30, 2026

5-Chloro-2-thiophenecarboxylic acid → HCID 178523075, compound

https://huagongshe.com/reaction/559532

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Chloro-2-thiophenecarboxylic acidHCID 95048—
ReactantBenzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 151348—
ReactantHCID 178510438HCID 178510438—
SolventDimethylformamideHCID 6228—
ProductHCID 178523075HCID 178523075—

Reaction Steps

To a solution of 5-chlorothiophene-2-carboxylic acid 1-5 (1.10 g, 6.76 mmol) and TEA (2.0 mL, 14.4 mmol) in DMF (12 mL), BOP (3.30 g, 7.45 mmol) was added. After being mixed for 5 min, the solution was added to the compound 4-aminomethylimidazole II-2 prepared above (0.604 g, 6.22 mmol) in a round bottom flask. The mixture was then stirred at room temperature overnight. It was purified by HPLC to give 5-chloro-N-((1H-imidazol-4-yl)methyl)thiophene-2-carboxamide 3-1 (1.52 g). MS 242.0 and 244.0 (M+H, Cl pattern).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063077B2
Source datasetuspto-grants-2011_11
ORD IDord-ffe896990e4d4ba1a119e23a62bc8d51
Source noteuspto-grants-2011_11