Facile Synthesis of Derivatives of 1,1,3-Trioxo-2<i>H</i>,4<i>H</i>-pyrrolo[1,2-<i>b</i>][1,2,4,6]thiatriazine: A New Heterocyclic System
作者:Wenmin Chen、Peng Zhan、Diwakar Rai、Boshi Huang、Jiapei Yang、Xinyong Liu
DOI:10.1002/hc.21123
日期:2013.11
We reported a facile and efficient methodology to synthesize derivatives of pyrrolo[1,2-b][1,2,4,6]thiatriazine (PTTD): a new bridgehead nitrogen heterocyclic system. Treatment of methyl pyrrole-2-carboxylate with N-benzylsulfamoyl chlorides followed by subsequent hydrolysis reaction afforded 1-benzylsulfamoyl-1H-pyrrole-2-carboxylic acids, which underwent ring-closing reaction by treatment with diphenyl
我们报道了一种合成吡咯并 [1,2-b][1,2,4,6] 噻三嗪 (PTTD) 衍生物的简便有效的方法:一种新的桥头氮杂环系统。用N-苄基氨磺酰氯处理吡咯-2-羧酸甲酯,然后进行水解反应,得到1-苄基氨磺酰基-1H-吡咯-2-羧酸,通过Curtius重排用二苯基磷酸酯处理进行闭环反应;随后的烷基化反应提供了所需的 2,4-二取代-1,1,3-三氧代-2H,4H-PTTD。