反应详情

3.59 g. of 2-(6-hydroxybenzothiazol-2-ylthio)-2-phenylpropionic acid ethyl ester is dissolved in 15 ml of 1 N sodium hydroxide solution and 1.6 g of diethyl sulfate is added dropwise, while stirring. After stirring for a total of 1 hour, the mixture is worked up in the customary manner to give 2-(6-ethoxybenzothiazol-2-ylthio)-2-phenylpropionic acid ethyl ester, m.p. 92°-94°.

1. stirringAfter stirring for a total of 1 hour