Gas-phase thermolysis of thieno[3,2-e][1,2,4]triazines. Interesting routes towards heterocyclic ring systems
作者:Yehia A. Ibrahim、Nouria A. Al-Awadi、Maher R. Ibrahim
DOI:10.1016/j.tet.2004.07.076
日期:2004.10
Gas-phase thermolysis of thieno[3,2-e][1,2,4]triazines gave benzonitrile, isothiazole, pyrimidine, [1]benzothieno[2,3-d]pyrimidine and thieno[3,2-d]thiazole derivatives. A mechanism of these pyrolytic transformation was proposed. Two new and efficient syntheses of the starting thieno[3,2-e][1,2,4]triazines were reported.
噻吩并[3,2- e ] [1,2,4]三嗪的气相热解得到苄腈,异噻唑,嘧啶,[1]苯并噻吩并[ 2,3- d ]嘧啶和噻吩并[3,2- d ]噻唑衍生品。提出了这些热解转化的机理。报道了起始的噻吩并[3,2- e ] [1,2,4]三嗪的两种新的有效合成方法。