Abstract From a sustainable point of view, available in Morocco and cheaper, we recycled the snail shell waste (aragonite) as a potential and an eco-friendly heterogeneous catalyst for the development and the synthesis of 1-(benzothiazolylamino) methyl-2-naphthols derivatives, via one-step condensation of three reactants of the substituted aromatic aldehydes, β-naphthol with 2-aminobenzothiazole under solvent-free conditions at 85 °C. The characterization of the products (4a-g) was carried out by different analysis techniques such as: Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H NMR and 13C NMR), high resolution mass spectrometry (HRMS) and elementary analysis. The investigations of the snail shell waste in organic reactions were showed excellent yields, very short times, ease of handling, positive aspects, great stability, reuse and environment respect, respectively.

中文翻译：

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研究蜗牛壳废料作为合成 1-（苯并噻唑基氨基）甲基-2-萘酚衍生物的潜在且环保的多相催化剂

摘要 从可持续的角度来看，在摩洛哥可获得且更便宜，我们回收了蜗牛壳废料（文石）作为开发和合成 1-（苯并噻唑基氨基）甲基-2-萘酚的潜在且环保的多相催化剂衍生物，通过取代芳香醛的三种反应物，β-萘酚与 2-氨基苯并噻唑在 85°C 无溶剂条件下的一步缩合。产物 (4a-g) 的表征通过不同的分析技术进行，例如：傅里叶变换红外光谱 (FTIR)、核磁共振 (1H NMR 和 13C NMR)、高分辨率质谱 (HRMS) 和元素分析。蜗牛壳废料在有机反应中的研究表明，产量高、时间短、易于处理、积极方面、