Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO
Synthesis of pyrano-chromenes and pyrano-pyrans was developed by three-component reactions of kojic acid and aromatic aldehydes with dimethone and malononitrile, catalyzed with nano-Bi2O3-ZnO and nano-ZnO, respectively. Reactions proceeded smoothly and the corresponding heterocyclic products were ob...
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| Format: | Article |
| Language: | English |
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Growing Science
2017-05-01
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| Series: | Current Chemistry Letters |
| Subjects: | |
| Online Access: | http://www.growingscience.com/ccl/Vol6/ccl_2017_6.pdf |
| _version_ | 1811194265439567872 |
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| author | Maryam Zirak Mostafa Azinfar Mosleh Khalili |
| author_facet | Maryam Zirak Mostafa Azinfar Mosleh Khalili |
| author_sort | Maryam Zirak |
| collection | DOAJ |
| description | Synthesis of pyrano-chromenes and pyrano-pyrans was developed by three-component reactions of kojic acid and aromatic aldehydes with dimethone and malononitrile, catalyzed with nano-Bi2O3-ZnO and nano-ZnO, respectively. Reactions proceeded smoothly and the corresponding heterocyclic products were obtained in good to high yields. Nano ZnO and nano Bi2O3-ZnO were prepared by sol-gel method and characterized by X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDX), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. Supporting Bi3+ on ZnO nanoparticles as Bi2O3, is the main novelty of this work. The simple reaction procedure, easy separation of products, low catalyst loading, reusability of the catalyst are some advantageous of this protocol. |
| first_indexed | 2024-04-12T00:23:14Z |
| format | Article |
| id | doaj.art-657bc031e00e4815b457a582737fa44a |
| institution | Directory Open Access Journal |
| issn | 1927-7296 1927-730X |
| language | English |
| last_indexed | 2024-04-12T00:23:14Z |
| publishDate | 2017-05-01 |
| publisher | Growing Science |
| record_format | Article |
| series | Current Chemistry Letters |
| spelling | doaj.art-657bc031e00e4815b457a582737fa44a2022-12-22T03:55:37ZengGrowing ScienceCurrent Chemistry Letters1927-72961927-730X2017-05-016310511610.5267/j.ccl.2017.4.001Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnOMaryam ZirakMostafa AzinfarMosleh Khalili Synthesis of pyrano-chromenes and pyrano-pyrans was developed by three-component reactions of kojic acid and aromatic aldehydes with dimethone and malononitrile, catalyzed with nano-Bi2O3-ZnO and nano-ZnO, respectively. Reactions proceeded smoothly and the corresponding heterocyclic products were obtained in good to high yields. Nano ZnO and nano Bi2O3-ZnO were prepared by sol-gel method and characterized by X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDX), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. Supporting Bi3+ on ZnO nanoparticles as Bi2O3, is the main novelty of this work. The simple reaction procedure, easy separation of products, low catalyst loading, reusability of the catalyst are some advantageous of this protocol.http://www.growingscience.com/ccl/Vol6/ccl_2017_6.pdfKojic acidHeterogeneous catalysisMulticomponent reactionSolvent-freeNano-ZnO |
| spellingShingle | Maryam Zirak Mostafa Azinfar Mosleh Khalili Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO Current Chemistry Letters Kojic acid Heterogeneous catalysis Multicomponent reaction Solvent-free Nano-ZnO |
| title | Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO |
| title_full | Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO |
| title_fullStr | Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO |
| title_full_unstemmed | Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO |
| title_short | Three-component reactions of kojic acid: Efficient synthesis of Dihydropyrano[3,2-b]chromenediones and aminopyranopyrans catalyzed with Nano-Bi2O3-ZnO and Nano-ZnO |
| title_sort | three component reactions of kojic acid efficient synthesis of dihydropyrano 3 2 b chromenediones and aminopyranopyrans catalyzed with nano bi2o3 zno and nano zno |
| topic | Kojic acid Heterogeneous catalysis Multicomponent reaction Solvent-free Nano-ZnO |
| url | http://www.growingscience.com/ccl/Vol6/ccl_2017_6.pdf |
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