Synthesis of dispiro[oxindole-pyrrolidine]-thiazolo[3,2-a][1,3,5]triazines by 1,3-dipolar cycloaddition
作者:Xiaofang Li、Zhikui Li、Aiting Zheng、Guobin Li、Xianyong Yu、Pinggui Yi
DOI:10.1002/jhet.647
日期:2011.7
The 1,3‐dipolar cycloaddition of an azomethine ylide generated by a decarboxylative route from sarcosine and isatin to 7‐arylmethylidene‐3‐aryl‐3,4‐dihydro‐2H‐thiazolo[3,2‐a][1,3,5]triazin‐6(7H)‐ones afforded novel dispiro[oxindole‐pyrrolidine]‐thiazolo[3,2‐a][1,3,5]triazines in moderate yields. The structures of the products were determined and characterized thoroughly by NMR, MS, IR, and elemental
从肌氨酸和异丁烯到7-芳基亚甲基-3-芳基-3,4-二氢-2 H-噻唑啉的脱羧途径产生的甲亚胺基内酯的1,3-偶极环加成[3,2- a ] [1,3 ,5] triazin-6(7H)-ones以中等收率提供了新型双螺并[oxindole-吡咯烷]-噻唑并[3,2- a ] [1,3,5]三嗪。通过NMR,MS,IR和元素分析对产物的结构进行了确定和表征。实验结果表明,这种1,3-偶极环加成反应具有很高的立体选择性和区域选择性。J.杂环化学。(2011)。