Study of the ring closure reaction of o-aminoarylsulfonamides with 1,1′-thiocarbonyldiimidazole.
作者:Pascal de Tullio、Bernard Pirotte、Fabian Somers、Stéphane Boverie、Fabrice Lacan、Jacques Delarge
DOI:10.1016/s0040-4020(98)00195-1
日期:1998.5
new kind of compound was also obtained, namely the 3-(imidazol-1-yl)-4H-1,2,4-arylthiadiazine 1,1-dioxides. The latter appeared to be good reaction intermediates. The use of 1,1′-thiocarbonyldiimidazole opens a new synthetic route to 3-alkylamino-4H-1,2,4-arylthiadiazine 1,1-dioxides, a heterocyclic ring system expressing important pharmacological properties. This work is the first study on the ring closure
1,1'-硫代羰基二咪唑用作邻氨基芳基磺酰胺的闭环剂。除了形成预期的3-thioxo-2,3-dihydro-4 H -1,2,4-arylthiadiazine 1,1-dioxide衍生物外,还获得了一种新型化合物,即3-(imidazol-1 -基)-4 H -1,2,4-芳基噻二嗪1,1-二氧化物。后者似乎是良好的反应中间体。1,1'-硫代羰基二咪唑的使用为3-烷基氨基-4 H -1,2,4-芳基噻二嗪1,1-二氧化物开辟了一条新的合成路线,该杂环系统具有重要的药理特性。这项工作是对该试剂的闭环性能的首次研究。