synthesis of benzopyrano[2,3-d]pyrimidines using silica-bonded n-propyldiethylenetriamine sulfamic acid (spdtsa) as heterogeneous solid acid catalyst under solvent-free conditions

اسناد مشابه

• Synthesis of 2-Amino-3,5-dicarbonitrile-6-thiopyridines Using Silica-bonded N-Propyldiethylenetriamine as a Heterogeneous Solid Base Catalyst

  مقاله۲۰۱۷Organic Chemistry ResearchAlireza Hosseini, Khodabakhsh Niknam

  Silica-bonded N-propyldiethylenetriamine (7) is employed as a recyclable heterogeneous solid base catalyst for the synthesis of 2-amino-3,5-dicarbonitrile-6-thiopyridines through pseudo four-component condensation reaction between aromatic aldehydes, malononitrile, and 2-amino-th

• synthesis of 2-amino-3,5-dicarbonitrile-6-thiopyridines using silica-bonded n-propyldiethylenetriamine as a heterogeneous solid base catalyst

  مقالهorganic chemistry researchkhodabakhsh niknam, persian gulf university alireza hosseini, persian gulf university

  silica-bonded n-propyldiethylenetriamine (7) is employed as a recyclable heterogeneous solid base catalyst for the synthesis of 2-amino-3,5-dicarbonitrile-6-thiopyridines through pseudo four-component condensation reaction between aromatic aldehydes, malononitrile, and 2-amino-th

• Efficient synthesis of α-aminonitriles over homopiperazine sulfamic acid functionalized mesoporous silica nanoparticles (MSNs-HPZ-SO3H), as a reusable acid catalyst

  مقاله۲۰۱۹Journal of the Iranian Chemical Society JICSZahra Nasresfahani, Mohamad Z. Kassaee, Esmaiel Eidi

• Synthesis of Benzopyrano[2,3-d]pyrimidines Using Silica-Bonded N-Propyldiethylenetriamine Sulfamic Acid (SPDTSA) As Heterogeneous Solid Acid Catalyst under Solvent-Free Conditions

  مقاله۲۰۱۵Organic Chemistry ResearchKhodabakhsh Niknam, Nassim Borazjani

  Silica-bonded N -propyldiethylenetriamine sulfamic acid (SPDTSA) is employed as a recyclable heterogeneous solid acid catalyst for the synthesis of benzopyrano[2,3- d ]pyrimidines through one-pot condensation reaction of salicylaldehydes, malononitrile and secondary amines at roo

• silica-bonded n-propyldiethylenetriamine sulfamic acid as a recyclable solid acid catalyst for the synthesis of coumarin and biscoumarin derivatives

  مقاله۲۰۱۴iranian journal of catalysiskhodabakhsh niknam, seyed ahmad sajadi, roghayeh hosseini, mojtaba baghernejad

  silica-bonded n-propyldiethylenetriamine sulfamic acid (sbpdsa) was found as an efficient solid acid for the synthesis of coumarins. coumarin derivatives were obtained via the pechmann condensation reaction of phenols and β-keto-esters at 80 oc under solvent-free conditions. also

• Silica-bonded n-propyldiethylenetriamine sulfamic acid as a recyclable solid acid catalyst for the synthesis of coumarin and biscoumarin derivatives

  مقاله۲۰۱۴Iranian Journal of CatalysisKhodabakhsh Niknam, Mojtaba Baghernejad, Roghayeh Hosseini, Seyed Ahmad Sajadi

  Silica-bonded n-propyldiethylenetriamine sulfamic acid (SBPDSA) was found as an efficient solid acid for the synthesis of coumarins. Coumarin derivatives were obtained via the Pechmann condensation reaction of phenols and β-keto-esters at 80 oC under solvent-free conditions. Also