Ultrasound-promoted One-pot Synthesis of 2-Thioxo-dihydropyrimidine Derivatives Bearing Piperidinylamide Moiety
作者:Bao-Hua Chen、Ji-Tai Li、Rui-Jia Lan、Guo-Feng Chen
DOI:10.2174/1570178611666140707183047
日期:2014.9
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。