Eco-friendly synthesis of 3-aminoimidazo [1, 2-a] pyridines via a one-pot three-component reaction in PEG catalyzed by peptide nanofibers: as hydrogen-bonding organocatalyst
作者:Arash Ghorbani-Choghamarani、Zahra Taherinia
DOI:10.1007/s13738-019-01744-w
日期:2020.1
additives. The key advantages of catalytic systems are (1) using peptide nanofibers as powerful hydrogen-bonding organocatalysts for the synthesis of 3-aminoimidazo [1, 2-a] pyridines, (2) having high catalytic activity, and (3) performing the reactions which can be carried out in PEG, as greensolvent instead of the usually used organic solvents. This catalyst could be recycled and reused at least for
Efficient Synthesis of 3-Aminoimidazo[1,2-a] Pyridines Using Silica-Supported Perchloric Acid (HClO4-SiO2) as a Novel Heterogenous Catalyst
作者:Azizollah Habibi、Zahra Tarameshloo、Shahnaz Rostamizadeh、Ali M. Amani
DOI:10.2174/157017812800167439
日期:2012.3.1
An efficient and green protocol for synthesis of 3-aminoimidazo[1,2-a] pyridine derivatives through a three-component reaction of aldehyde, 2-amino pyridine and isocyanide in the presence of silica-supportedperchloricacid (HClO4-SiO2) is described in this paper. The solid catalyst could be recycled and reused.
Synthesis of imidazo[1, 2‐a]pyridines via the silver acetate‐catalyzed Groebke‐Blackburn‐Bienayme reaction with ethylene glycol as a biodegradable and sustainable solvent
作者:Mustafa Hussain、Jianhui Liu、Lu Fu、Mehdi Hasan
DOI:10.1002/jhet.3746
日期:2020.3
An efficient, silver‐based catalytic system has been designed for the synthesis of biologically important 3‐aminoimidazo‐fused heterocycles via the Groebke‐Blackburn‐Bienayme reaction, in which AgOAc was used as a catalyst and ethyleneglycol as a solvent from isocyanides, various aryl aldehydes and an 2‐amino heterocycle were also used. Good to excellent yields, high atomic economy and environmentally
Imidazo[1,2-α]pyridines possess adenosine A1 receptor affinity for the potential treatment of cognition in neurological disorders
作者:Roslyn Lefin、Mietha M. van der Walt、Pieter J. Milne、Gisella Terre'Blanche
DOI:10.1016/j.bmcl.2017.07.071
日期:2017.9
has shown that bicyclic 6:5-fused heteroaromatic compounds with two N-atoms have variable degrees of adenosineA1 receptor antagonistic activity. Prompted by this imidazo[1,2-α]pyridine analogues were synthesized and evaluated for their adenosineA1 and A2A receptor affinity via radioligand binding studies and subjected to a GTP shift assay to determine its adenosineA1 receptor agonistic or antagonistic
Facile synthesis of imidazo[1,2-a]pyridines via a one-pot three-component reaction under solvent-free mechanochemical ball-milling conditions
作者:Ali Maleki、Shahrzad Javanshir、Maryam Naimabadi
DOI:10.1039/c3ra43221a
日期:——
In this work, 3-aminoimidazo[1,2-a]pyridine derivatives have been synthesized by a one-pot three-component condensation reaction of 2-aminopridines, aldehydes and isocyanides under solvent-free mechanochemical ball-milling conditions in good to excellent yields at room temperature. This efficient protocol has many noticeable advantages such as mild reaction conditions, high yields, high atom economy, short reaction times and simple separation.