“…Arylhydrazones dyes was used as an efficient disperse dyes for high temperature polyester dyeing which showing a high affinity with high color strength [12]. In this context, alkyl 4,5-dihydro-5-oxo-2-aryl (1H)pyrrole-3-carboxylate (pyrrolinone ester) is known as very important heterocylic intermediate for the preparation of different category of colorants [13, 14, 15, 16, 17, 18, 19, 20]. The presence of active methylene group at position 4 in pyrrolinone ester enhances the electrophilic substitution reaction with different electrophiles such as nitriles, aldehydes and diazonium salts [21, 22].…”