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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290894Generated: October 26, 2026

Acetic Acid → Ethyl 1-isopropyl-2-oxo-1,2-dihydro-3-quinolinecarboxylate

https://huagongshe.com/reaction/1290894

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantDiethyl MalonateHCID 7761—
ReactantPiperidineHCID 8082—
Reactant2-((Propan-2-yl)amino)benzaldehydeHCID 11041035—
SolventTolueneHCID 1140—
ProductEthyl 1-isopropyl-2-oxo-1,2-dihydro-3-quinolinecarboxylateHCID 15468682163.7%

Reaction Steps

A solution of 20.0 g of 2-isopropylaminobenzaldehyde, 29.4 g of diethyl malonate, 10 ml of piperidine, 10 ml of acetic acid and 500 ml of toluene was heated to reflux for 13 hours. The reaction solution was washed with water and then with saturated sodium hydrogencarbonate aqueous solution, and dried over anhydrous magnesium sulfate. The solvent was distilled off to give 52 g of ethyl 1-isopropyl-2-oxo-1,2-dihydro-3-quinolinecarboxylate as the crude product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05753673
Source datasetuspto-grants-1998_05
ORD IDord-25437f40d43f43cbb58bd11a5bdc9e43
Source noteuspto-grants-1998_05