Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water
Abstract This study has introduced a pioneering methodology by employing biochars as a basic carbocatalyst in the context of multicomponent reactions. Biochars were produced from different manures and organic wastes using the pyrolysis-carbonization process under limited oxygen conditions. The prep...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Springer
2024-01-01
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| Series: | Biochar |
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| Online Access: | https://doi.org/10.1007/s42773-023-00286-y |
| _version_ | 1797355614227136512 |
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| author | Dariush Khalili Ali Asghar Ramjerdi Hamid Reza Boostani Arash Ghaderi |
| author_facet | Dariush Khalili Ali Asghar Ramjerdi Hamid Reza Boostani Arash Ghaderi |
| author_sort | Dariush Khalili |
| collection | DOAJ |
| description | Abstract This study has introduced a pioneering methodology by employing biochars as a basic carbocatalyst in the context of multicomponent reactions. Biochars were produced from different manures and organic wastes using the pyrolysis-carbonization process under limited oxygen conditions. The prepared biochars were well characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Brunauer–Emmett–Teller (BET) analysis, and powder X-ray diffraction (XRD). The chemical characteristics and potentiometric titration analysis provide compelling evidence of the intriguing basicity properties exhibited by the prepared biochars. The pH values, ash content, and potentiometric titration results confirmed the exceptional basicity characteristics of cow manure biochar formed at 600 oC (CB600), establishing it as the most basic carbocatalyst in this study. Encouraged by these initial results, the activity of the biochars as basic carbocatalysts was evaluated in multicomponent synthesis of 4H-benzo[h]chromene and pyranopyrazoles and 600 °C exhibited the most pronounced catalytic performance owing to its superior total basicity. By these findings, it can be asserted that this work introduces the groundbreaking application of biochars as potent basic carbocatalysts for the multicomponent synthesis of structurally diverse heterocycles. Unveiling the vital basic role of biochars will definitely open up new opportunities in organic chemistry and provide salient features for environmentally-friendly chemistry, including easy retrieval, non-toxicity, and widespread accessibility. Graphical Abstract |
| first_indexed | 2024-03-08T14:14:38Z |
| format | Article |
| id | doaj.art-ee563a06099f4c80a0b72e29f7915887 |
| institution | Directory Open Access Journal |
| issn | 2524-7867 |
| language | English |
| last_indexed | 2024-03-08T14:14:38Z |
| publishDate | 2024-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Biochar |
| spelling | doaj.art-ee563a06099f4c80a0b72e29f79158872024-01-14T12:31:33ZengSpringerBiochar2524-78672024-01-016111910.1007/s42773-023-00286-yBiochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in waterDariush Khalili0Ali Asghar Ramjerdi1Hamid Reza Boostani2Arash Ghaderi3Department of Chemistry, College of Sciences, Shiraz UniversityDepartment of Chemistry, College of Sciences, Shiraz UniversityDepartment of Soil Science, College of Agriculture and Natural Resources of Darab, Shiraz UniversityDepartment of Chemistry, College of Sciences, University of HormozganAbstract This study has introduced a pioneering methodology by employing biochars as a basic carbocatalyst in the context of multicomponent reactions. Biochars were produced from different manures and organic wastes using the pyrolysis-carbonization process under limited oxygen conditions. The prepared biochars were well characterized using Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Brunauer–Emmett–Teller (BET) analysis, and powder X-ray diffraction (XRD). The chemical characteristics and potentiometric titration analysis provide compelling evidence of the intriguing basicity properties exhibited by the prepared biochars. The pH values, ash content, and potentiometric titration results confirmed the exceptional basicity characteristics of cow manure biochar formed at 600 oC (CB600), establishing it as the most basic carbocatalyst in this study. Encouraged by these initial results, the activity of the biochars as basic carbocatalysts was evaluated in multicomponent synthesis of 4H-benzo[h]chromene and pyranopyrazoles and 600 °C exhibited the most pronounced catalytic performance owing to its superior total basicity. By these findings, it can be asserted that this work introduces the groundbreaking application of biochars as potent basic carbocatalysts for the multicomponent synthesis of structurally diverse heterocycles. Unveiling the vital basic role of biochars will definitely open up new opportunities in organic chemistry and provide salient features for environmentally-friendly chemistry, including easy retrieval, non-toxicity, and widespread accessibility. Graphical Abstracthttps://doi.org/10.1007/s42773-023-00286-yBiomassBiocharBasic carbocatalystHeterogeneous catalysisMulticomponent synthesisEnvironment sustainability |
| spellingShingle | Dariush Khalili Ali Asghar Ramjerdi Hamid Reza Boostani Arash Ghaderi Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water Biochar Biomass Biochar Basic carbocatalyst Heterogeneous catalysis Multicomponent synthesis Environment sustainability |
| title | Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water |
| title_full | Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water |
| title_fullStr | Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water |
| title_full_unstemmed | Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water |
| title_short | Biochar: a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4H-benzo[h]chromene and pyranopyrazoles in water |
| title_sort | biochar a high performance and renewable basic carbocatalyst for facilitating room temperature synthesis of 4h benzo h chromene and pyranopyrazoles in water |
| topic | Biomass Biochar Basic carbocatalyst Heterogeneous catalysis Multicomponent synthesis Environment sustainability |
| url | https://doi.org/10.1007/s42773-023-00286-y |
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