Reactions of nitrile, amide or ester of 5-amino-3-thioxo-3H-1,2-dithiole-4-carboxylic acid 1 with alkylation and acylation agents were studied. "Ionic" 1,2-dithiole amides 6 were formed in several ways. Treatment with phosphorus pentasulfide afforded the corresponding 3,3aλ4,4-trithia-1-azapentalenes 7. Structures of the synthesized heterocycles were studied using a combination of X-ray analysis, IR spectroscopy, and HF and DFT quantum-chemical calculations.
翻译结果:
研究了5-氨基-3-硫代-3H-1,2-二硫杂环-4-羧酸的腈、酰胺或酯1与烷基化和酰化试剂的反应。以几种方式形成了“离子”1,2-二硫杂环酰胺6。用五硫化二磷处理得到相应的3,3aλ4,4-三硫杂-1-氮杂五环7。利用X射线分析、红外光谱和HF和DFT量子化学计算相结合的方法研究了合成的杂环的结构。