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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 324334Generated: October 29, 2026

2,4-Difluorobenzoyl chloride → HCID 18623232, compound

https://huagongshe.com/reaction/324334

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-Difluorobenzoyl chlorideHCID 588081—
ReactantPiperonylamineHCID 2723901—
SolventDichloromethaneHCID 6344—
SolventTriethylamineHCID 8471—
ProductHCID 18623232HCID 1862323271%

Reaction Steps

To a suspension of 4-piperidinone monohydrate hydrochloride (2.00 g, 13.28 mmol) in CH2Cl2 (40 mL) and triethylamine (5.0 mL) was added 2,4-difluorobenzoyl chloride (2.84 g, 15.93 mmol). The resulting mixture was stirred at room temperature for 5 hours before quenching with aqueous NaHCO3 (30 mL). Extracted with EtOAc (3×50 mL), dried (MgSO4), and concentrated to a residue which was purified by flash chromatography (EtOAc:Hexanes 9:1 to 1:1 ) afford product as an oil (2.25 g, 71%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06218390B1
Source datasetuspto-grants-2001_04
ORD IDord-086a9f26b9984120a6d40204a43dd6fa
Source noteuspto-grants-2001_04