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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1163074Generated: October 29, 2026

Oxalyl chloride → HCID 58970777, compound

https://huagongshe.com/reaction/1163074

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant4-HydroxypyrrolidineHCID 98210—
ReactantHCID 58970773HCID 58970773—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 58970777HCID 58970777—

Reaction Steps

A solution of 4-(2-phenyl-benzoimidazol-1-ylmethyl)-benzoic acid (1 g, 3 mmol) in DCM is treated with 2 drops of DMF followed by oxalylchloride (3 mL, 6 mmol, 2M solution in DCM), stirred at room temperature for 2 hours and concentrated in vacuo. The resultant residue is dissolved in DCM, treated with 3-pyrrolidinol (0.3 mL, 3.6 mmol), stirred at room temperature for 8 hours then concentrated to give 1-{4-[(2-phenyl-1H-benzimidazol-1-yl)methyl]benzoyl}pyrrolidin-3-ol identified by HPLC and MS [398.4 m/e (M+H)].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07820825B2
Source datasetuspto-grants-2010_10
ORD IDord-74a149deab9e4ff2876d3448ab6f14ef
Source noteuspto-grants-2010_10