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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 272535Generated: November 1, 2026

Hydrochloric Acid → 2-(4-Isopropyl-piperazin-1-yl)-pyridin-4-ylamine

https://huagongshe.com/reaction/272535

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-[2-(4-Isopropyl-piperazin-1-yl)-pyridin-4-yl]-acetamideHCID 68946851—
Solvent1,4-DioxaneHCID 31275—
Product2-(4-Isopropyl-piperazin-1-yl)-pyridin-4-ylamineHCID 6170847057%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2.1 g (8 mmol) N-[2-(4-isopropyl-piperazin-1-yl)-pyridin-4-yl]-acetamide and 10.5 ml 4N HCl in 25 ml dioxane was heated to 100° C. for 2 h. After evaporation of all volatiles the residue was treated with water and NaHCO3 aq. sat. and extracted with DCM. The combined organic layers were washed with NaCl aq. sat., dried with MgSO4 and evaporated. The residue was triturated with DCM and dried to yield 1 g (57%) of the title compounds as white solid. MS: (m/e): 221.3 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456175B2
Source datasetuspto-grants-2008_11
ORD IDord-b0860360945c4b2b9b782d5e182cd6e7
Source noteuspto-grants-2008_11