Synthesis of some new 2, 5-disubstituted 1, 3, 4-oxadiazole derivatives and their biological activity

MSY Khan, M Akhtar

Index: Khan; Akhtar Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2003 , vol. 42, # 4 p. 900 - 904

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Citation Number: 52

Abstract

Abstract: 2-(Coumarin-3-yl)-5-aryl-1, 3, 4-oxadiazole derivatives 3-5 have been synthesised by condensing hydrazide 2 of 3-carbethoxycoumarin with various aromatic acids. Compound 3 is also synthesized by another route involving synthesis of an intermediate N-2- hydroxy benzylidene coumarin-3-carboxyhydrazide 6 which is prepared by reacting 2 with salicy laldehyde. On refluxing it in presence of chloramine T the desired 1, 3, 4-oxadiazole ...

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