Synthesis and characterization of fluconazole-functionalized magnetic nanoparticles as a catalyst for the synthesis of 3-aryl and 3-amino-imidazo[1,2-a]pyridines
Fluconazole immobilised on modified Fe3O4–SiO2 core–shell nanoparticles was synthesised, characterised and used as a catalyst in synthesis of 3-aryl and 3-amino-imidazo[1,2-a]pyridines.
Imidazoazines have been synthesized by a one-potthree-component condensation reaction of an aldehyde, a 2-aminoazine and an isocyanide in the presence of the cellulose sulfuric acid, as an effective bio-supported catalyst in excellent yields. The reaction work-up is simple and the catalyst can be easily separated from the product and reused in several times.
Ionic liquid promoted one-pot synthesis of 3-aminoimidazo[1,2-a]pyridines
作者:Ahmad Shaabani、Ebrahim Soleimani、Ali Maleki
DOI:10.1016/j.tetlet.2006.03.011
日期:2006.5
3-Aminoimidazo[1,2-a]pyridines have been synthesized in good to excellent yields in the presence of the ionicliquid 1-butyl-3-methylimidazolium bromide [bmim]Br, the reaction workup is simple and the ionicliquid can be easily separated from the product and reused.
在离子液体溴化1-丁基-3-甲基咪唑鎓溴化[bmim] Br的存在下,合成了3-氨基咪唑并[1,2- a ]吡啶,收率好至极好,反应后处理简单,离子液体可以易于与产品分离并重复使用。
Bromodimethylsulfonium bromide (BDMS) catalyzed synthesis of imidazo[1,2-a]pyridine derivatives and their fluorescence properties
作者:Abu T. Khan、R. Sidick Basha、Mohan Lal
DOI:10.1016/j.tetlet.2012.02.078
日期:2012.4
A convenient synthetic protocol for the synthesis of imidazo[1,2-a]pyridine has been developed by employing one-pot three-component Ugi reaction by employing aromatic amidine, aromatic aldehyde, and isocyanide using 5 mol % of bromodimethylsulfoniumbromide (BDMS) at room temperature. In addition, they also exhibit interesting fluorescence properties, which may be useful for fluorescent probe. Mild
通过使用芳香族%,芳香族醛和异氰化物,使用5摩尔%的溴二甲基s溴化物(BDMS),通过单锅三组分Ugi反应,已经开发了一种方便的合成咪唑并[1,2- a ]吡啶的合成方案。在室温下。此外,它们还表现出令人感兴趣的荧光特性,这可能对荧光探针有用。温和的反应条件,非水后处理程序,良好的收率,较短的反应时间以及无需色谱分离是本方案的一些突出特征。
Rapid Synthesis of 3‐Aminoimidazo[1,2‐<i>a</i>]Pyridines and Pyrazines
Abstract p‐Toluenesulfonic acid catalyzed the one‐pot, three‐component synthesis of 3‐aminoimidazo[1,2‐a]pyridines and pyrazines through a condensation reaction of a 2‐aminoazine, an aldehyde, and an isocyanide at room temperature. This methodology affords a number of 3‐aminoimidazo[1,2‐a]pyridines in reasonable yields and short reaction times without any significant optimization of the reaction conditions