A convenient and efficient one-pot synthesis of 2-thioxo-dihydropyrimidine derivatives bearing piperidinylamide
moiety is described. The reactions were carried out in 81-91% yields via the condensation of 1-(piperidin-1-
yl)butane-1,3-dione with aromatic aldehyde and thiourea in ethanol catalyzed by p-toluenesulfonic acid at room temperature
under ultrasound irradiation. The advantages of this methodology are convenient operation, mild conditions, short reaction
times and high yields.
描述了一种方便高效的一锅合成2-
硫代二
氢嘧啶衍
生物的方法,这些衍
生物具有
哌啶酰胺基团。反应在室温下通过超声波照射,在p-
苯磺酸催化下,使用
1-(哌啶-1-基)丁烷-1,3-二酮与芳香醛和
硫脲在
乙醇中进行,反应产率为81-91%。该方法的优点包括操作方便、条件温和、反应时间短和产率高。