Department of Chemistry, Faculty of Applied Sciences, Durban University of Technology, Durban 4001, South Africa
Adv. Mater. Lett., 2016, 7 (10), pp 790-794
DOI: 10.5185/amlett.2016.6850
Publication Date (Web): Aug 01, 2016
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E-mail:genganrm@dut.ac.za
An efficient one-pot multi-component synthesis of medicinally important 2-amino-4H-pyran-3-carbonitrile derivatives using a new heterogeneous calcium loaded boron nitride (CaBNT) catalyst is described herein. This transformation transpires by Knoevenagel condensation, Michael addition and intramolecular cyclization. Alkaline earth metal-based green catalyst was successfully prepared and characterized by XRD, SEM with EDX, Raman spectroscopy, BET, DSC-TGA and FT-IR. The reaction works up is facile and CaBNT catalyst can easily be separated from the reaction mixture and re-used more than five times in subsequent reactions. This methodology offers several advantages such as excellent yields, use of inexpensive solvent and relatively shorter reaction time.
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