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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79565Generated: October 28, 2026

Dichloromethane → 5-phenyl-4-(piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine dihydrochloride

https://huagongshe.com/reaction/79565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 68764043HCID 68764043—
Product5-phenyl-4-(piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine dihydrochlorideHCID 6875878094.3%

Reaction Steps

tert-Butyl 4-(5-phenyl-1H-pyrrolo[2,3-b]pyri din-4-yl)piperazine-1-carboxylate (0.40 g, 1.06 mmol) was placed in DCM (10 mL). TFA (2 mL) was then added, and the reaction was stirred for 1 hour. The reaction was concentrated to dryness, redissolved in minimal DCM, and added to a stirring solution of 1M HCl in ether. The resulting solid was collected by filtration, washed with ether, and dried to give 5-phenyl-4-(piperazin-1-yl)-1H-pyrrolo[2,3-b]pyridine dihydrochloride (0.350 g, 94.3% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841304B2
Source datasetuspto-grants-2014_09
ORD IDord-4c815f92a32442edbbe2959cf19c1ac2
Source noteuspto-grants-2014_09