Part 1: Synthesis of Polyfused Heterocyclic Systems Derived From 3-Phenyl-5,6,7,8-tetrahydro[1,2,4]triazolo[3,4- b ][1,3,4]thiadiazepine-6,8-dione
作者:O. A. Abd Allah
DOI:10.1080/10426500214876
日期:2002.12.1
3-Phenyl-5,6,7,8-tetrahydro[1,2,4]triazolo[3,4- b ][1,3,4]thiadiazepine-6,8-dione ( 1 ) was condensed with o -aminothiophenol, 2-amino-ethanol or cystamine to afford compounds 2-4 respectively. Treatment of compound 1 with dimethylthiomethylenemalononitrile yielded the corresponding pyrano[3,2- f ][1,2,4]triazolo[3,4- b ]-[1,3,4]thiadiazepine derivative 5 . 7-[5-Amino-1,3-dithiolan-2-ylidene]-3-phenyl-5
3-苯基-5,6,7,8-四氢[1,2,4]三唑并[3,4-b][1,3,4]thiadiazepine-6,8-dione (1)与o-氨基苯硫酚、2-氨基乙醇或胱胺分别得到化合物2-4。用二甲基硫代亚甲基丙二腈处理化合物 1 得到相应的吡喃并[3,2-f][1,2,4]三唑并[3,4-b]-[1,3,4]噻二氮杂衍生物 5 。7-[5-Amino-1,3-dithiolan-2-ylidene]-3-phenyl-5,6,7,8-tetrahydro[1,2,4]triazolo[3,4-b][1,3 ,4]thiadiazepine-6,8-dione (6) 通过用 CS 2 和氯乙腈处理化合物 1 得到。化合物 1 硫代得到相应的硫代类似物 7 ,然后与丙二腈缩合得到 3-苯基-5,6,7,8-四氢[1,2,4]三唑并[3,4-b][1, 3,4]thiadiazepine-6-