Revised Structures, 1-Methylene-1H-[1,4]thiazino[4,3-a]benzimidazole and 10-Methylene-10H-imidazo[2,1-c][1,4]benzothiazine Derivatives, for the Cycloadducts Accompanying Rearrangement from Imidazo[2,1-b]benzothiazole and Thiazolo[3,2-a]benzimidazole Derivatives with Propiolic Esters
作者:Noritaka Abe、Hiroyuki Fujii、Akikazu Kakehi、Motoo Shiro
DOI:10.1039/a808536f
日期:——
structures, thiazolo[3,2-a][1,5]benzodiazepine and [1,4]diazepino[7,1-b]benzothiazole derivatives, cycloadducts from the reactions of thiazolo[3,2-a]benzimidazole and imidazo[2,1-b]benzothiazole derivatives with propiolic esters, are revised to methyl 2-[4-methyl-(E)-1H-[1,4]thiazino[4,3-a]benzimidazol-1-ylidene)methoxycarbonylmethyl]-(E)-acrylate and methyl [2-methyl-(E)-10H-imidazo[2,1-c][1,4]benzoth
先前提出的结构,噻唑并[3,2-a][1,5]苯二氮卓和[1,4]二氮杂[7,1-b]苯并噻唑衍生物,噻唑并[3,2-a]苯并咪唑反应的环加合物和咪唑并[2,1-b]苯并噻唑衍生物与丙炔酸酯,被修改为甲基2-[4-甲基-(E)-1H-[1,4]噻嗪并[4,3-a]苯并咪唑-1-亚基)甲氧基羰基甲基]-(E)-丙烯酸甲酯和[2-甲基-(E)-10H-咪唑并[2,1-c][1,4]苯并噻嗪-10-亚基)-甲氧基羰基甲基]-(E)-丙烯酸甲酯,分别通过 X 射线结构分析推导出其结构。