|
|
|
|
Brønsted Acidic Phosphonium Based Ionic Liquid Functionalized SBA-15 [HO3S-PhospIL@SBA-15]: Green, Recyclable, and Efficient Catalyst for the Synthesis of Pyrano[3,2-c]Chromenone Derivatives
|
|
|
|
|
|
|
|
نویسنده
|
- - ,- - ,- - ,- - ,- - ,- - ,- -
|
|
منبع
|
iranian journal of chemistry and chemical engineering - 2015 - دوره : 34 - شماره : 4 - صفحه:39 -45
|
|
چکیده
|
The surface of sba-15 was modified by diphenylphosphine; then, it was treated with butane sultone and sulfuric acid to obtain brønsted acid ho3s-phosphonium based ionic liquid functionalized sba-15 with hso4- as a counteranion. it efficiently catalyzed synthesis of pyrano[3,2-c]chromenone derivatives through the reaction of 4-hydroxycoumarin and chalcones at 60 °c in water/ethanol. good yields, mild reaction conditions, and user-friendly procedure are advantages of this method. also, the catalyst could be easily separated and reused five times without significant reduction of activity.
|
|
کلیدواژه
|
Chalcones ,Functionalized SBA-15 ,4-Hydroxycoumarin ,Pyrano[3 ,2-c]chromenones ,Supported ionic liquid
|
|
آدرس
|
Medicinal Plants Research Center, Faculty, Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, I R IRAN, ایران, Department of Chemistry, Tehran-North Branch,, Department of Chemistry, Tehran-North Branch, Islamic Azad University, Zafar St, Tehran, I R IRAN, ایران, Department of Medicinal Chemistry, Faculty, Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, I R IRAN, ایران, Department of Medicinal Chemistry, Faculty, Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, I R IRAN, ایران, Department of Chemistry, Tehran-North Branch,, Department of Chemistry, Tehran-North Branch, Islamic Azad University, Zafar St, Tehran, I R IRAN, ایران, Department of Medicinal Chemistry, Faculty, Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, I R IRAN, ایران, Department of Medicinal Chemistry, Faculty, Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, I R IRAN, ایران
|
|
پست الکترونیکی
|
aforoumadi@yahoo.com
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|