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Title: Green synthesis of 1,2,4-triazolo[4,3-<i style="">a</i>][1,8]naphthyridines using PhI(OAc)<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> under microwave irradiation
Authors: Mogilaiah, K
Chandra, A Vinay
Srivani, N
Keywords: 1,2,4-Triazole
Microwave irradiation
Solvent-free conditions
Issue Date: Sep-2011
Publisher: NISCAIR-CSIR, India
Abstract: Alumina-supported iodobenzene diacetate [PhI(OAc)<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub>] is a highly efficient reagent for the oxidative cyclization of <i style="">N</i>-arylidene-N′–[3-(4-fluorophenyl)-[1,8]naphthyridin-2-yl]-hy­dra­zines <b style="">7 </b>to<b style=""> </b>1-aryl-4-[4-fluoro phenyl]-1,2,4-triazolo[4,3-<i style="">a</i>][1,8]naphthyridines <b style="">8 </b>in solvent-free conditions under microwave irradiation. The products are obtained in good yields and excellent purities. The structural assignments of compounds <b style="">3-8</b> were based on their spectral (IR, <sup>1</sup>H&nbsp;NMR and MS) and analytical data.
Description: 1187-1191
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.50B(09) [September 2011]

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