TY - JOUR ID - 75614 TI - Characterization of Catalyst: Comparison of BrØnsted and Lewis Acidic Power in Boron Sulfonic Acid as a Heterogeneous Catalyst in Green Synthesis of Quinoxaline Derivatives JO - Chemical Methodologies JA - CHEMM LA - en SN - 2645-7776 AU - Sajjadifar, Sami AU - Azizkhania, Vahid AU - Pal, Kaushik AU - Jabbari, Hadi AU - Pouralimardan, Omidali AU - Divsar, Faten AU - Mohammadi-Aghdam, Sarvin AU - Amini, Issa AU - Hamidi, Hoda AD - Department of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, Iran AD - Department of Chemistry, Payame Noor University, P.O. Box 19395-4697, Tehran, Iran AD - Department of Nanotechnology, Bharath University, BIHER Research Park, Chennai, Tamil Nadu 600073, India Y1 - 2019 PY - 2019 VL - 3 IS - 2 SP - 226 EP - 236 KW - Quinoxaline KW - Boron Sulfonic Acid KW - Trimethyl borate KW - Triisopropyl borate KW - SBSA KW - STMB KW - STIPB DO - 10.22034/chemm.2018.147943.1086 N2 - A simple, highly efficient and green procedure for the condensation of aryl and alkyl 1,2-diamines with α-diketones in the presence of catalytic amount of boron sulfonic acid (BSA) and silica trimethyl borat (STMB) and silica triisopropyl borate (STIPB), as two novel heterogeneous Lewis acid catalysts at room temperature, is described. In this method, we proved that the BrØnsted acidic power of boron sulfonic acid (BSA) is more important than its Lewis acidity. Using this method, quinoxaline derivatives as biologically interesting compounds are produced in high to excellent yields.  UR - https://www.chemmethod.com/article_75614.html L1 - https://www.chemmethod.com/article_75614_6d003742182fec781afc8441f34e51b6.pdf ER -