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Issue 8, 2015
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Synthesis of bis(indolyl)methanes using ammonium niobium oxalate (ANO) as an efficient and recyclable catalyst

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Abstract

A green and efficient procedure was developed for the synthesis of bis(indolyl)methanes using ammonium niobium oxalate (ANO) NH4[NbO(C2O4)2(H2O)xnH2O as the catalyst and water or glycerol as the solvent. Products were obtained in good to excellent yields under conventional heating (water, 50 °C) or under sonication (glycerol, 110 °C). In the reaction in water, the catalyst was easily reused for further reactions without loss of activity.

Graphical abstract: Synthesis of bis(indolyl)methanes using ammonium niobium oxalate (ANO) as an efficient and recyclable catalyst

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Publication details

The article was received on 02 May 2015, accepted on 20 Jun 2015 and first published on 22 Jun 2015


Article type: Paper
DOI: 10.1039/C5GC00932D
Citation: Green Chem., 2015,17, 4334-4339

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    Synthesis of bis(indolyl)methanes using ammonium niobium oxalate (ANO) as an efficient and recyclable catalyst

    S. R. Mendes, S. Thurow, F. Penteado, M. S. da Silva, R. A. Gariani, G. Perin and E. J. Lenardão, Green Chem., 2015, 17, 4334
    DOI: 10.1039/C5GC00932D

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