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Sulfonated Reduced Graphene Oxide (RGO-SO3H): As an Efficient Nanocatalyst for One-Pot Synthesis of 2-Amino-3-cyano-7-hydroxy-4H-chromenes Derivatives in Water |
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| Authors: | Samaneh Behravesh Reza Fareghi-Alamdari Rashid Badri |
| Affiliation: | 1. Department of Chemistry, Science and Research Branch, Islamic Azad University, Khouzestan, Iran;2. Department of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, Tehran, Iran;3. Department of Chemistry, Shahid Chamran University, Ahvaz, Iran |
| Abstract: | Sulfonated reduced graphene oxide (RGO-SO3H) was found to be an efficient catalyst for one-pot synthesis of a class of 2-amino-3-cyano-7-hydroxy-4H-chromenes derivatives using multicomponent reaction (MCR) of phenols, aldehydes and malononitrile under mild and green conditions. The reaction was performed in water as a green solvent and range of 2-amino-3-cyano-7-hydroxy-4H-chromenes were obtained in good to excellent yields. The RGO-SO3H was reusable at least 5 times without significant decrease in its catalytic activity. |
| Keywords: | 2-Amino-3-cyano-7-hydroxy-4H-chromenes heterogeneous catalysis multicomponent reactions one-pot synthesis sulfonated reduced grapheme oxide (RGO-SO3H) |