Facile synthesis of novel fluorinated thieno[2,3-d]pyrimidine derivatives containing 1,3,4-thiadiazole
作者:Xin Jian Song、Zheng Chao Duan、Yu Shao、Xing Gao Dong
DOI:10.1016/j.cclet.2012.02.007
日期:2012.5
Abstract A series of novel fluorinated thieno[2,3-d]pyrimidine derivatives incorporating 1,3,4-thiadiazole were synthesized by a facile microwave-assisted procedure, including the cyclization of 2-aminothiophene-3-carbonitrile with trifluoroacetic acid, chlorination and nucleophilic substitution reaction. This protocol offered such advantages as mild reaction conditions, short reaction time, simple
摘要通过简便的微波辅助方法,包括2-氨基噻吩-3-甲腈与三氟乙酸的环化反应,氯化反应,合成了一系列新的含1,3,4-噻二唑的氟化噻吩并[2,3-d]嘧啶衍生物。和亲核取代反应。该方案具有反应条件温和,反应时间短,纯化简单,收率高等优点。产物的结构通过1 H NMR,MS,元素分析和X射线衍射进行表征。