Synthesis Five and Seven Heterocyclic Compounds: from Starting Materials Furoic -2-Carboxylic Acid (Pyromucic Acid)

Abstract

This work involves synthesis of different five and seven member heterocyclic ring starting from furoic-2-carboxylic acid(pyromucic acid) This part involved  synthesis of ethyl-2- chlorobenzoate  via reaction of 2-chlorobenzoic acid with sulfuric acid in ethanol absolute and the product reacts  with hydrazine hydrate in ethanol to get 2-chlorobenzohydrazide then reaction of different acide (aromatic)

Keywords: Oxadiazoles, POCl_3, 2- chlorobenzaoic acid, Furoic acid, Biological.