%0 Journal Article
%T Solvent Free One-Pot Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles Catalyzed by Secondary Amine Based Ionic Liquid and Defective Keggin Heteropoly Acid
%A Pranab Jyoti Das
%A Jupitara Das
%A Munni Ghosh
%A Sabera Sultana
%J Green and Sustainable Chemistry
%P 6-13
%@ 2160-696X
%D 2013
%I Scientific Research Publishing
%R 10.4236/gsc.2013.34A002
%X <p class=\"MsoNormal\">
	<span lang=\"EN-US\">Secondary amine based ionic liquid and defective Keggin type
heteropoly acid (HPA) are separately used for</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">efficient one</span><span lang=\"EN-US\">-</span><span lang=\"EN-US\">pot</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\">four</span><span lang=\"EN-US\">-</span><span lang=\"EN-US\">component
synthesis of 1,2,4,5-tetrasubstituted imidazoles assisted by microwave (MW).
Eco</span><span lang=\"EN-US\">-</span><span lang=\"EN-US\">friendly solvent free procedure, short reaction time, high yield of
products and reusability of catalysts are important features of the synthesis.
A comparative study on the efficiency of the two catalysts is reported. This
work further demonstrates the alternate use of urea, instead of often used
ammonium acetate, as source of nitrogen.</span><span lang=\"EN-US\"><o:p></o:p></span>
</p>
%K Ionic Liquids
%K Keggin Heteropolyacid
%K Microwave
%K Tetrasubstituted Imidazole
%K Solvent Free Synthesis
%K Multicomponent Reaction
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=39898