Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 26, Issue 1, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.202201065
Keywords
Arylglyoxal; Annulation; Imidazole; Imidazo[2; 1-a]isoquinolin-6(5H)-ones; Ruthenium
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Novel 5-hydroxyimidazo[2,1-a]isoquinolin-6(5H)-ones were synthesized by Ru(II)-catalyzed reaction of 2-arylimidazoles with arylglyoxals. The method provided moderate to good yields and could be scaled up for synthesis. The reaction involved imidazole-directed Ru(II)-catalyzed ortho-dicarbonylation followed by nucleophilic cyclization. Photophysical properties of the newly synthesized compounds were investigated.
Synthesis of novel 5-hydroxyimidazo[2,1-a]isoquinolin-6(5H)-ones have been achieved by Ru(II)-catalyzed reaction of 2-arylimidazoles with arylglyoxals. The method provided moderate to good yields of 5-hydroxyimidazo[2,1-a]isoquinolin-6(5H)-ones and is amenable to gram-scale synthesis. The reaction involves imidazole-directed Ru(II)-catalyzed ortho-dicarbonylation followed by nucleophilic cyclization of the NH-group with the carbonyl group. Photophysical properties of the newly synthesized 5-hydroxyimidazo-[2,1-a]isoquinolin-6(5H)-ones were investigated.
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