A new series of some interesting bispyrazole-thiazole-pyran-2-one heterocyclic hybrids has been efficiently synthesized via a one-pot catalyst-free three-component reaction of α-bromoacetylated pyran-2-one derivatives, thiosemicarbazide, and polysubstituted-1-(1H-pyrazol-4-yl)butane-1,3-diones. This multicomponent procedure has been advantageously applied to prepare a structural diversity of hetero­cyclic hybrids characterized by extensive 1D and 2D NMR spectroscopic studies.

中文翻译：

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双吡唑-噻唑-吡喃-2-one杂环杂化物的一锅三组分合成

通过 α-溴乙酰化 pyran-2-one 衍生物、氨基硫脲和多取代-1 的一锅无催化剂三组分反应，有效合成了一系列新的有趣的双吡唑-噻唑-吡喃-2-one 杂环杂化物-(1H-pyrazol-4-yl)butane-1,3-diones。这种多组分程序已被有利地应用于制备以广泛的 1D 和 2D NMR 光谱研究为特征的杂环杂化物的结构多样性。