The present work describes the preparation of new thiadiazoles through a simple intramolecular reaction of mono- and bis-hydrazonoyl halides with methyl hydrogen phenyl carbonimidodithioate or methyl-2-arylidene hydrazinecarbodithioate. The synthetic method involves nucleophilic substitution followed by intramolecular cyclization reactions mediated by evolution of methanethiol. The structures of the title compounds were elucidated by elemental analyses, and FTIR, MS and NMR spectra.
目前的工作描述了通过单亚
肼基卤化物和双亚
肼酰卤与甲基氢苯基碳
酰亚胺二
硫代酸酯或甲基-2-亚芳基
肼碳二
硫代酸酯的简单分子内反应制备新型
噻二唑。该合成方法涉及亲核取代,然后是由
甲硫醇的演化介导的分子内环化反应。通过元素分析、FTIR、MS 和 NMR 光谱阐明了标题化合物的结构。