Polystyrene-supported ionic liquid copper complex: A reusable catalyst for one-pot three-component click reaction
作者:Mahnaz Tavassoli、Amir Landarani-Isfahani、Majid Moghadam、Shahram Tangestaninejad、Valliolah Mirkhani、Iraj Mohammadpoor-Baltork
DOI:10.1016/j.apcata.2015.07.015
日期:2015.8
Copper(II) complex of 1,2-bis(4-pyridylthio)ethane immobilized on polystyrene was a used as a highly stable, active, reusable and green catalyst for click synthesis of 1,2,3-triazoles via one-pot three-component reaction of organic halides, sodium azide and alkynes. The catalyst was characterized by FT-IR spectroscopy, thermogravimetric analysis, elemental analysis, field emission scanning electron
固定在聚苯乙烯上的1,2-双(4-吡啶硫基)乙烷的铜(II)络合物用作高稳定,活性,可重复使用的绿色催化剂,可通过一锅三点击合成1,2,3-三唑卤化物,叠氮化钠和炔烃的-组分反应。通过FT-IR光谱,热重分析,元素分析,场发射扫描电子显微镜,能量色散X射线,透射电子显微镜和元素分析对催化剂进行了表征。使用0.2摩尔%的催化剂,有机金属卤化物或α-溴代酮和烷基/芳基末端炔烃的高选择性,广泛的多样性以及优异的产物收率。该催化体系在合成双-1,4-二取代的1,2,3-三唑。此外,该催化剂可以循环使用七次而不会降低其催化活性。