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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1291834Generated: October 25, 2026

Oxalyl chloride → 4-[(4-Pyridyl)piperazin-1-yl]benzoyl chloride

https://huagongshe.com/reaction/1291834

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant4-((4-Pyridyl)piperazin-1-yl)benzoic acidHCID 18918300—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product4-[(4-Pyridyl)piperazin-1-yl]benzoyl chlorideHCID 18918364—

Reaction Steps

Oxalyl chloride (0.5 ml) was added to a stirred suspension of 4-((4-pyridyl)piperazin-1-yl)benzoic acid in dichloromethane (15 ml), followed by DMF (1 drop). The mixture was stirred for 2 hours and evaporated to dryness to give 4-[(4-pyridyl)piperazin-1-yl]benzoyl chloride which was used immediately.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05753659
Source datasetuspto-grants-1998_05
ORD IDord-7661f7c25c2b486dba9af0f505a4d96b
Source noteuspto-grants-1998_05