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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1465734Generated: October 30, 2026

Trifluoroacetic acid → 2-(2-Oxopiperazin-1-yl)quinoline-6-carbonitrile

https://huagongshe.com/reaction/1465734

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 4-(6-cyanoquinolin-2-yl)-3-oxopiperazine-1-carboxylateHCID 131732662—
Product2-(2-Oxopiperazin-1-yl)quinoline-6-carbonitrileHCID 89525294—

Reaction Steps

tert-Butyl 4-(6-cyanoquinolin-2-yl)-3-oxopiperazine-1-carboxylate (0.15 g, 0.79 mmol) was treated with TFA (2 mL) and stirred for 20 minutes. Analysis of the reaction mixture by LC indicated the reaction had gone to completion. The solution was concentrated in vacuo and crude was azetroped (3×) with dichloroethane to furnish the title product. LC/MS (IE, m/z): [M+1]+=253.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08999991B2
Source datasetuspto-grants-2015_04
ORD IDord-afbd1ecaf91047c696c6fecf76fef3d3
Source noteuspto-grants-2015_04