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Naphthols Q 0850Environmentally Friendly Preparation of Amidoalkyl Naphthols. -The novel one-pot, three-component reaction gives higher yields upon thermal heating compared to microwave irradiation. With aliphatic aldehydes, the reaction fails. The preparation of the catalyst from neutral alumina and phosphoric acid is also given. -(SHATERIAN*, H. R.; AMIRZADEH, A.; KHORAMI, F.; GHASHANG, M.; Synth.

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Preparation of perchloric acid supported on alumina and its primary application as a solid supported heterogeneous catalyst to the synthesis of α-(α-amidobenzyl)-β-naphthols by a one-pot, three-component condensation of benzaldehydes, β-naphthol and acetamide or benzamide under thermal solvent-free conditions were described. The present methodology offers several advantages such as simple procedure, shorter reaction time, and excellent yields.

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