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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1901292Generated: November 2, 2026

Pyridine → HCID 19973188, compound

https://huagongshe.com/reaction/1901292

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 70341925HCID 70341925—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 19973188HCID 19973188—

Reaction Steps

To a solution of 2-amino-N-[2-(2-fluorobenzoyl)-1H-pyrrol-1-yl]acetamide hydrobromide hemihydrate (2.09 g) in 10 ml of anhydrous dimethylformamide and 40 ml of anhydrous DCM were added pyridine (1.89 g) and acetic anhydride (1.22 g). The reaction mixture was stirred at room temperature for 1 hour, subsequently diluted with water and extracted with DCM. The combined organic layers were washed with 5% hydrochloric acid and water, dried over magnesium sulfate and evaporated in vacuo. The residual oil was recrystallized from DCM/ethyl ether affording the product as crystals (1.58 g), m.p. 146°-147° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05576446
Source datasetuspto-grants-1996_11
ORD IDord-1bf4e2d5f0c749b99f018f5516aef530
Source noteuspto-grants-1996_11