The synthesis of aminonaphtols and β-amino carbonyls in the presence of a magnetic recyclable Fe₃O₄@MCM-48–NaHSO₄nano catalyst

Abstract

Sulfonic acid functionalized mesoporous magnetite nanoparticles as an efficient, heterogeneous and recyclable catalyst for the synthesis of aminonaphtols and β-amino carbonyls. Advantages: good yields, rapid reaction, solvent-free conditions and room temperature.

α-Aminoazoles/azines: key reaction partners for multicomponent reactions

“…The stirring of three components, heterocyclic amine 347, aldehyde 4 and 2-naphthol 406, in one pot together with the catalyst at room temperature for 1–3 min was found to be sufficient to provide target products 417 in excellent yields. 256 Next, the group of A. Olyaei synthesized aminonaphthol (Betti's base) through a similar strategy, in which the same starting materials were heated at 125 °C under catalyst- and solvent-free conditions. 257 In addition, S. Jayashree and K. Shivashankar also performed the same reaction in the presence of montmorillonite K-10 using ethanol as the solvent at room temperature.…”

Fe3O4@MCM‐41@ZrCl2: A novel magnetic mesoporous nanocomposite catalyst including zirconium nanoparticles for the synthesis of 1‐(benzothiazolylamino)phenylmethyl‐2‐naphthols

“…The synthesis of Fe 3 O 4 -MNPs was fulfilled according to our previous method with slight modification. [77] Accordingly, 6.3-g FeCl 3 Á6H 2 O, 4.0-g FeCl 2 Á4H 2 O, and 1.7-mL HCl (12 mol L −1 ) were mixed in 50 mL of deionized water in a beaker. Then, the solution was degassed with argon gas and heated to 80 C in a reactor.…”

Synthesis of Amid-MCM-41-SO3H Electrospun Nanofiber Mat: Candidate for Trapping of Microorganisms

“…There are hydroxyl groups on the surface as indicated with strong peaks around 3200 and 3400 cm. The existence of OH groups on the mesoporous material surface after the sulfonation [33].…”