描述了一种在无溶剂介质中制备4 H-嘧啶并[2,1- b ]苯并噻唑衍生物的新型氟化铁辅助方便高效策略。该反应可以在低催化剂负载下以优异的官能团耐受性进行。催化剂可以容易地回收并再用于至少三轮反应的下一步反应,而对产物的收率没有任何明显的影响。易于回收的催化剂和高收率的产品使该方案具有吸引力,可持续性和经济性。
Synthesis, characterization and catalytic application of tributyl(carboxymethyl)phosphonium bromotrichloroferrate as a new magnetic ionic liquid for the preparation of 2,3-dihydroquinazolin-4(1H)-ones and 4H-pyrimidobenzothiazoles
作者:Mohammad Reza Anizadeh、Mohammad Ali Zolfigol、Meysam Yarie、Morteza Torabi、Saeid Azizian
DOI:10.1007/s11164-020-04183-y
日期:2020.8
magnetic ionicliquid bearing acetic acid tags was synthesized and characterized by several methods including Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), vibrating sample magnetometer (VSM), thermogravimetric analysis (TGA) and derivative thermogravimetry analysis (DTG). The prepared magnetic ionicliquid was applied as catalyst for synthesis of 2,3-