ABSTRACT Reactions of bis-hydrazonoyl bromide 1 with each of phenyl-5-arylidene-2-thioxo-thiazol-4-one, triazinethiones and 4,6-dimethyl-2,6-dioxocyclohexane-1-thiocarboxanilide as sulfur dipolarophilic reagents led to the formation of the hitherto unreported 1,3-phenylene bis-heterocycles 4, 8 and 10, respectively. The structures of the isolated products were established on the basis of their elemental
摘要 双腙酰
溴 1 与作为
硫双极性试剂的苯基-5-亚芳基-2-
硫代-
噻唑-4-酮、三嗪
硫酮和 4,6-二甲基-2,6-二氧代
环己烷-1-
硫代甲酰
苯胺中的每一种的反应导致迄今为止未报道的
1,3-亚苯基双杂环 4、8 和 10 的形成。分离产物的结构是在元素和光谱分析的基础上建立的。讨论了所研究反应的机理和位点选择性。图形概要