Sodium Hydroxide → HCID 19608044, compound

Participants

Reaction Steps

To a solution of 1-(4-methoxycarbonylbenzoyl)-1,2,3,4-tetrahydroquinoline (22.7 g) in methanol (300 ml) is added 5% aqueous sodium hydroxide solution (150 ml) and the mixture is refluxed for 2 hours. Methanol is distilled off under reduced pressure and the resulting residue is acidified with diluted hydrochloric acid, extracted with diethyl ether, and dried over magnesium sulfate. The solvent is distilled off under reduced pressure and the resulting crystal is collected by filtration to give 1-(4-carboxybenzoyl)-1,2,3,4-tetrahydroquinoline (13.2 g) as white powder, m.p. 181-183° C.

Provenance & Evidence