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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2307355Generated: October 31, 2026

Oxalyl chloride → HCID 22605448, compound

https://huagongshe.com/reaction/2307355

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant4-(3-methyl-1H-pyrazol-1-yl)benzoic acidHCID 1180478—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 22605448HCID 2260544887.7%

Reaction Steps

To a suspension of 4-(3-methylpyrazol-1-yl)benzoic acid (1.84 g) in dichloromethane (25 ml) was added oxalyl chloride (1.16 g) and one drop of dimethylformamide. The mixture was stirred at room temperature for 18 hours and the volatile material was removed under reduced pressure. Dichloromethane was added, the solution filtered, and the solvent evaporated under reduced pressure to yield 4-(3-methylpyrazol-1-yl)benzoyl chloride as a yellow oil (1.76 g), which was utilized without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06831079B1
Source datasetuspto-grants-2004_12
ORD IDord-db75684c8e3041db91d856ed3152b439
Source noteuspto-grants-2004_12