We have achieved an efficient and green synthesis of 4-(benzylidene/substituted benzylidene)-N-aryl amino-2-(styryl/substituted styryl)-
1H-imidazole-5(4H)-one derivatives in good yields by using 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as a catalyst.
Key words: Green chemistry, phenylhydrazine, DBU, Schiff bases
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