A convenient and facile CuCl₂·2H₂O catalyzed one-pot synthetic strategy was designed for the conversion of readily available dimedone into highly functionalized N-arylhydrazinecarbothioamide based indazole derivatives. The product yields were found to be moderate to good without purification requirements. Structural features of the synthetic compounds were confirmed by various spectroscopic techniques such as ¹H NMR, ¹³C NMR, EI-MS, FAB-MS, HREI-MS, and HRFAB-MS. The reaction intermediates were also quenched and characterized. Plausible reaction mechanisms were also discussed.

中文翻译：

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简便的CuCl ₂ ·2H ₂ O催化将一丁二酮一锅转化为高度官能化的吲唑基N-芳基肼甲硫基酰胺

设计了一种方便易用的CuCl ₂ ·2H ₂ O催化一锅合成策略，用于将现成的二甲酮转化为高度官能化的基于N-芳基肼甲硫代酰胺的吲唑衍生物。发现没有纯化要求，产物收率中等至良好。通过各种光谱技术，例如¹ H NMR，¹³ C NMR，EI-MS，FAB-MS，HREI-MS和HRFAB-MS ，确认了合成化合物的结构特征。反应中间体也被淬灭和表征。还讨论了合理的反应机理。