Microwave-assisted three-component reaction in conventional solvents and ionic liquids for the synthesis of amino-substituted imidazo[1,2-a]pyridines
- Publication Type
 - Journal contribution (peer reviewed)
 - Authors
 - Mert-Balci, F.; Conrad, J.; Beifuss, U.
 - Year of publication
 - 2012
 - Published in
 - ARKIVOC
 - DOI
 - 10.3998/ark.5550190.0013.318
 - Page (from - to)
 - 243 - 256
 
3-Amino-substituted imidazo[1,2-a]pyridines can be prepd. with yields up to 98% within a few minutes by microwave-assisted three-component reaction between 2-aminopyridines, aldehydes and isocyanides using montmorillonite as the catalyst and toluene as the solvent. The org. solvent can be replaced by ionic liqs. With guanidinium salts the microwave-assisted reaction can be performed in the absence of any further catalyst.