Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR Nashrieh Shimi va Mohandesi Shimi Iran 1022-7768 40 1 2021 05 22 Synthesis of Benzylidene Bis(4-Hydroxycoumarin) Derivatives Using a Polymer Nanocomposite Synthesis of Benzylidene Bis(4-Hydroxycoumarin) Derivatives Using a Polymer Nanocomposite 45 53 36375 FA Mohammadreza Nazarifar Department of Chemistry, Lamerd Branch, Islamic Azad University, Lamerd, I.R. IRAN Ghasem Rahpaima Department of Chemistry, Lamerd Branch, Islamic Azad University, Lamerd, I.R. IRAN Jalil Khezri Department of Chemistry, Lamerd Branch, Islamic Azad University, Lamerd, I.R. IRAN 0009-0001-4865-1721 Journal Article 2019 05 03 In this study, polymer nanocomposites based on 2-aminophenol and Palm date have been introduced as an efficient and inexpensive catalyst and successfully used for the synthesis of benzylidene Bis(4-Hydroxycoumarin) derivatives. The polymer and nanocomposite were characterized by a Scanning Electron Microscope (SEM). Benzylidene Bis(4-Hydroxycoumarin) Derivatives have recently attracted much attention as an important class of heterocycles to their useful biological and pharmacological properties, herein we report a novel and efficient procedure for the synthesis of α,α′-benzylidenebis (4-hydroxycoumarin) derivatives based on the reaction of 4-hydroxycoumarin and aromatic aldehydes using polymer nanocomposites based on 2-aminophenol and Palm date as a solid heterogeneous catalyst in excellent yields (84-99%) and very short reaction time (2-5 min) in aqueous media (50%) have been described. In this study, polymer nanocomposites based on 2-aminophenol and Palm date have been introduced as an efficient and inexpensive catalyst and successfully used for the synthesis of benzylidene Bis(4-Hydroxycoumarin) derivatives. The polymer and nanocomposite were characterized by a Scanning Electron Microscope (SEM). Benzylidene Bis(4-Hydroxycoumarin) Derivatives have recently attracted much attention as an important class of heterocycles to their useful biological and pharmacological properties, herein we report a novel and efficient procedure for the synthesis of α,α′-benzylidenebis (4-hydroxycoumarin) derivatives based on the reaction of 4-hydroxycoumarin and aromatic aldehydes using polymer nanocomposites based on 2-aminophenol and Palm date as a solid heterogeneous catalyst in excellent yields (84-99%) and very short reaction time (2-5 min) in aqueous media (50%) have been described.

https://www.nsmsi.ir/article_36375_08f3648792fc7148287e0934cafdd002.pdf