One‐pot and green synthesis 1H-pyrazolo[1,2-b]phthalazine-5,10-dione and dihydropyrano[3,2-c]chromene derivatives by Fe3O4@SiO2-imine/phenoxy-Cu(II) as an efficient and reusable catalyst
heterogeneous catalyst for the one-pot multicomponent synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione and dihydropyrano[3,2-c]chromene derivatives under solvent-free conditions, without using any harmful organic reagents/solvent. The current synthetic protocol demonstrates that the reactions proceeds to completing step, leading to the successful synthesis of high purity compounds. Advantages of this method
在目前的研究中,用 Cu-salen 络合物(Fe 3 O 4 @SiO 2 -亚胺/苯氧基-Cu(II))改性的磁铁矿 - 二氧化硅核壳纳米粒子被用作一锅多组分合成的多相催化剂1 H -pyrazolo[1,2 - b ]phthalazine-5,10-dione 和 dihydropyrano[3,2- c]色烯衍生物在无溶剂条件下,不使用任何有害的有机试剂/溶剂。目前的合成方案表明,反应进行到完成步骤,导致高纯度化合物的成功合成。该方法的优点包括易于纯化、催化剂可重复使用、绿色和温和的程序以及在较短的反应时间内以高产率合成新衍生物。