Hydrochloric Acid → HCID 20298226, Verbindung

Reaktionsgleichung

C([O:3][C:4](=[O:16])[C:5]([C:7]1[NH:8][C:9]([S:12][CH2:13][CH2:14][CH3:15])=[CH:10][CH:11]=1)=[O:6])C.[OH-].[Na+].Cl>O>[CH2:13]([S:12][C:9]1[NH:8][C:7]([C:5](=[O:6])[C:4]([OH:16])=[O:3])=[CH:11][CH:10]=1)[CH2:14][CH3:15]

Komponenten

Versuchsvorschrift

A mixture of 5-n-propylthio-2-pyrrolylglyoxylic acid ethyl ester (2.4 g.) and sodium hydroxide (1.0 g.) in water (100 ml.) was heated on a steam bath for 3 hours. The solution was cooled, acidified to pH 1 with dilute hydrochloric acid and the product extracted with chloroform. Evaporation of the solvent and recrystallization from petroleum ether (B.P. 40°-60°) gave 5-n-propylthio-2-pyrrolylglyoxylic acid (0.7 g.) as yellow crystals, M.P. 87°. Found: C, 50.34; H, 5.21; N, 6.54. C9H11NO3S requires: C, 50.68; H, 5.20; N, 6.57%.