Nano-Catalytic Synthesis of Novel Phosphonic Acids Containing of β-naphthol Group

Document Type : Research Article


Department of Chemistry, Marvdasht Branch, Islamic Azad University, Marvdasht, I.R. IRAN


In presented research work, novel organophosphorus acids containing β-naphthol group was synthesized by one-pot three-component domino-Knoevenagel- Phospha-Michael reaction between β-naphthol, aromatic aldehydes and triethylphosphite under green and environmentally conditions. Multi-walled carbon nanotubes containing sulfamic acid functional group were used as a heterogeneous catalyst for decreasing reaction time, increasing yield and the completed of the reaction. The advantages of this synthesis are recyclability and reusability of nano-catalyst, simplicity, utility, suitable reaction time and good yields. Their structures of products were confirmed by Nuclear Magnetic Resonance spectroscopy of hydrogen, carbon, and phosphorus and the melting point of solid products was reported.


Main Subjects

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