Reactions of 1,2-diaza-1,3-dienes with thiol derivatives: a versatile construction of nitrogen/sulfur containing heterocycles
作者:Orazio A. Attanasi、Paolino Filippone、Samuele Lillini、Fabio Mantellini、Simona Nicolini、Jesús M. de los Santos、Roberto Ignacio、Domitila Aparicio、Francisco Palacios
DOI:10.1016/j.tet.2008.07.030
日期:2008.9
The synthesis of substituted 2,3-dihydro-1,4-thiazines, fused cycloalkyl-1,4-thiazines, 1,4-benzothiazines and fused cycloalkyl-1,4-benzothiazines by 1,4-addition of 1,2-aminothiols to 1,2-diaza-1,3-dienes bearing carboxylate, carboxamide, or phosphorylated groups and subsequent internal heterocyclization is described. The reaction of carboxylated 1,2-diaza-1,3-butadienes with 2-(butylamino)ethanethiol
通过1,2-的1,4-加成反应合成取代的2,3-二氢-1,4-噻嗪,稠合的环烷基-1,4-噻嗪,1,4-苯并噻嗪和稠合的环烷基-1,4-苯并噻嗪描述了带有羧酸根,羧酰胺基或磷酸化基团的1,2-二氮杂-1,3-二烯基的氨基硫醇和随后的内部杂环化。羧化的1,2-二氮杂-1,3-丁二烯与2-(丁基氨基)乙硫醇的反应得到1,4-噻嗪南-3-酮。聚合物结合的1,2-二氮杂-1,3-丁二烯与1,2-氨基硫醇的固相反应产生2,3-二氢-1,4-噻嗪和1,4-苯并噻嗪。