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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 864798Generated: October 31, 2026

1-(4-Pyridyl)piperazine → HCID 18918505, compound

https://huagongshe.com/reaction/864798

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(4-Pyridyl)piperazineHCID 70517—
Reactant7-Chloro-1-ethyl-1,4-dihydro-4-oxo-3-quinolinecarboxylic acidHCID 15618562—
SolventMethanolHCID 887—
ProductHCID 18918505HCID 1891850524.8%

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of 1-ethyl-7-chloro-4-quinolon-3-ylcarboxylic acid (182 mg) and 1-(4-pyridyl) piperazine (125 mg ) was heated to 200° C. for 20 minutes. The mixture was cooled and methanol (5 ml) was added. The resulting solid was filtered and washed with methanol (10 ml) to give the title compound (68 mg), as a solid: NMR (d6DMSO) δ1.4(t,3H), 3.75-3.85(m,4H), 3.9-4.0(m,4H), 4.55(q,2H), 6.9(d,1H), 7.2(d,2H), 7.3(dd,1H), 8.2(d,1H), 8.3(d,2H), 8.9(s,1H); m/e 379(M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05563141
Source datasetuspto-grants-1996_10
ORD IDord-f50520377a104fd49ff7dd920f548b35
Source noteuspto-grants-1996_10