Magnetically recoverable copper ferrite catalyzed cascade synthesis of 4-Aryl-1H-1,2,3-triazoles under microwave irradiation |
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Authors: | Pubanita Bhuyan Pratiksha Bhorali Imdadul Islam Amar Jyoti Bhuyan Lakhinath Saikia |
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Institution: | 1. Department of Chemistry, Rajiv Gandhi University, Rono Hills, Doimukh, Itanagar, 791112, India;2. Department of Chemistry, Indian Institute of Technology, Guwahati 781039, India |
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Abstract: | Magnetically active CuFe2O4 catalyzed cascade synthesis of 4-Aryl-1H-1,2,3-triazoles under microwave irradiation starting from aromatic aldehydes, sodium azide and nitromethane has been developed and demonstrated here. The catalyst system needed for the purpose was prepared following a procedure by A. Dandiya et al. with a slight modification and was characterized using FT-IR, XRD, SEM-EDX and TEM analysis. The most notable advantage of the developed methodology is the excellent time economy to carry out the transformation. Other features include simple operating procedure, wide substrate coverage and easy recovery of the catalyst. Reusability of the catalyst has been tested and found to be very satisfactory up to sixth cycle without significant loss in efficiency. All the synthesized compounds have been characterized using FTIR, 1H & 13CNMR spectroscopy, HRMS. |
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Keywords: | Domino reactions Microwave chemistry Azides Copper ferrite Triazoles |
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