inductively coupled plasma (ICP) analysis, thermogravimetric analysis (TGA) and FT-IR. CDSCS is proved to be a useful heterogeneous nano catalyst in Cu(I)-catalyzed ‘Click’ cycloaddition of organic azides with terminal alkynes. CDSCS catalyzes the 1,3-dipolar cycloaddition reactions of β-azido alcohols and alkynes at room temperature, in THF/H2O (1:1, v/v) solution. Using CDSCS, 1,4-disubstituted 1,2,3-triazole
描述了一种新型的高效多相纳米催化剂-掺杂铜的二氧化硅硫酸亚铜(CDSCS)的合成与表征。CDSCS已通过不同的显微镜,光谱和物理技术进行了全面表征,包括扫描电子显微镜(SEM),透射电子显微镜(TEM),原子强制显微镜(AFM),X射线衍射(XRD),电感耦合等离子体(ICP)分析,热重分析(TGA)和FT-IR。事实证明,CDSCS是有机叠氮化物与末端炔烃的Cu(I)催化的“ Click”环加成反应中有用的多相纳米催化剂。CDSCS在室温/ THF / H 2中催化β-叠氮基醇和炔烃的1,3-偶极环加成反应O(1:1,v / v)解决方案。使用CDSCS,主要以良好的至优异的产率和短的反应时间获得1,4-二取代的1,2,3-三唑加合物。这些化合物与β-肾上腺素受体阻断剂具有相似的特性。CDSCS被批准为化学和热稳定的纳米催化剂,可在许多连续的试验中重复使用而其反应性没有明显下降。
Doped Nano-Sized Copper(I) Oxide (Cu<sub>2</sub>O) on MelamineFormaldehyde Resin: a Highly Efficient Heterogeneous Nano Catalyst for ‘Click’ Synthesis of Some Novel 1<i>H</i>-1,2,3-Triazole Derivatives Having Antibacterial Activity
for the 1,3‐dipolarcycloaddition of organic azides with terminal alkynes catalyzed by doped nano‐sized Cu2O on melamineformaldehyde resin (nano‐Cu2OMFR) as a new and convenient heterogeneous catalyst is described. In this method, ‘click’ cycloaddition of various structurally diverse β‐azido alcohols and alkynes in the presence of nano‐Cu2OMFR in H2O/THF 1 : 2 furnished the corresponding 1,4‐disubstituted
Copper-hydroxyacetophenone thiosemicarbazone complex on silica-coated magnetite nanoparticles as an efficient catalyst for three-component synthesis of 1,4-disubstituted 1,2,3-triazoles
作者:Narjes Kaviani、Somayeh Behrouz、Abbas Ali Jafari、Mohammad Navid Soltani Rad
DOI:10.1016/j.jorganchem.2024.123043
日期:2024.3
Synthesis, characterization, and application of copper-hydroxyacetophenone thiosemicarbazone complex immobilized on silica-coated magnetite nanoparticles (FeO@SiO-HAT-Cu(I)) as a novel magnetically retrievable nanocatalyst for the three-component synthesis of 1,4-disubstituted 1,2,3-triazoles are described. [Display omitted]
the ‘Click’ cycloaddition of organic azides with terminal alkynes catalyzed by immobilized [Cu(cdsalMeen)] on silica as a new and convenient heterogeneouscatalyst is described. In this synthetic methodology, [Cu(cdsalMeen)]–SiO2 catalyzes 1,3-dipolar Huisgencycloaddition of different functionalized β-azido alcohols and alkynes in the presence of ascorbic acid and a solution of THF/H2O (2:1, V/V) at
摘要描述了一种简便,简单的方案,用于将有机叠氮化物与末端炔烃“点击”环加成,并通过固定化[Cu(cdsalMeen)]作为新的便捷非均相催化剂催化末端炔烃。在这种合成方法中,[Cu(cdsalMeen)]-SiO 2在抗坏血酸和THF / H 2 O(2:1)的存在下催化不同官能化的β-叠氮基醇和炔烃的1,3-偶极Huisgen环加成反应。,V / V)。使用[Cu(cdsalMeen)]-SiO 2可得到良好至优异的β-羟基三唑烷基衍生物。批准将[Cu(cdsalMeen)]固定在二氧化硅上是一种化学和热稳定的催化剂,可以在许多连续试验中重复使用而其反应性没有明显下降。 图形概要