Hydrochloric Acid → HCID 178418698, compound

Participants

Reaction Steps

To a solution of 9.7 g of 4-Hydroxy-7-methyl-quinoline-2-carboxylic acid ethyl ester in 200 ml of THF, 84 ml of a 1M aqueous sodium hydroxide solution was added and stirred for 16 h at RT. The reaction mixture was acidified with 1M hydrochloric acid to pH 1 to precipitate the product, which was then collected by filtration. The residue was co-distilled additional two times with toluene. After drying under reduced pressure the product was pure enough for the next reaction step. Yield: 7.7 g.

Provenance & Evidence