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8211219 
Journal Article 
Synthesis, Characterization and Microbial screening of dioxolane and thiazolidinones derivatives of 2,5-dichloro-3,4-diformyl (N-substituted phenyl) pyrroles 
Rajput, AP; Kankhare, AR 
2016 
Scholars Research Library 
13 
1-8 
English 
Formylation of N-substituted phenyl succinimides was carried out by using Vilsmeier-Haack reagent which formed 2,5-dichloro-3,4-diformyl (N-substituted Phenyl) pyrroles (III) compounds. Compounds (III) was treated with ethylene glycol in presence of PTSA to get dioxolane derivatives (IV) which on further treatment with hydrazine hydrate formed compound (V) described in (Scheme-I). The synthesis of Schiffbases (VI) by treating 2 moles of substituted aromatic primary amines with 1 mole of compound (III). This compound (VI) on treatment with 2 moles of thioglycolic acid formed corresponding 4-thiazolidinone derivatives (VII) of 2,5-dichloro-3,4-diformyl (Nsubstituted phenyl) pyrroles. (Scheme-II). 
4-thiazolidinones; Dioxolane; Schiffbases; Succinimides; Vilsmeier-Haack