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Title: Synthesis of 6-aryl-9-(4-hydroxy-3-ethoxyphenyl)-1,2,4-triazolo [4,3-a][1,8]naphthyridines under microwave irradiation
Authors: Mogilaiah, K
Jagadeeshwar, K
Rao, A Nageswara
Keywords: 1,8-Naphthyridine;1,2,4-Triazole;Silicagel Supported Ferric Chloride (SiO2-FeCl3);Solvent-Free Conditions;Microwave Irradiation
Issue Date: Feb-2012
Publisher: NISCAIR-CSIR, India
Abstract: A simple and efficient method for the synthesis of 6-aryl-9-(4-hydroxy-3-ethoxyphenyl)-1,2,4-triazolo[4,3-a][1,8] naphthyrid­ines 4 by the oxidation of the corresponding ethylvanillin 3-aryl-1,8-naphthyridin-2-ylhydrazones 3 using silicagel supported ferric chloride (SiO2-FeCl3) in solvent-free conditions under microwave irradiation has been described. The products are obtained in good yields and in a state of high purity. The structural assignment of compounds 3 and 4 were based on their elemental analyses and spectral data.
Page(s): 398-401
Appears in Collections:IJC-B Vol.51B(02) [February 2012]

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