Fe3O4@silica‐MCM‐41@DABCO: A novel magnetically reusable nanostructured catalyst for clean in situ synthesis of substituted 2‐aminodihydropyrano[3,2‐b]pyran‐3‐cyano |
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Authors: | Khadijeh Ojaghi Aghbash Nader Noroozi Pesyan Hana Batmani |
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Abstract: | DABCO (1,4‐diazabicyclo[2.2.2]octane)‐modified magnetite with silica‐MCM‐41 shell (Fe3O4@silica‐MCM‐41@DABCO) as an effective, magnetic and novel heterogeneous reusable nanocatalyst was synthesized and analysed using various techniques. Evaluation of the catalytic activity of this nanocatalyst was performed in the clean synthesis of substituted 2‐aminodihydropyrano[3,2‐b]pyran‐3‐cyano in high yields via in situ reaction of azido kojic acid, malononitrile and various aldehydes. |
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Keywords: | 2‐amino‐4,8‐dihydropyrano[3,2‐b]pyran‐3‐carbonitrile azido kojic acid Fe3O4@MCM‐41@DABCO Michael addition nanocatalyst |
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