Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation
A new one-pot method for the synthesis four-component of pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl)methanone derivatives has been developed in the presence of nano Fe3O4@TiO2-SO3H catalysts (heterogeneous acid) under microwave conditions and in a solvent-free environment at 180 W. One of the be...
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| Series: | Green Chemistry Letters and Reviews |
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| Online Access: | http://dx.doi.org/10.1080/17518253.2020.1794056 |
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doaj-7e9fc00a86664fb1bb17525d901451e32020-11-25T01:38:56ZengTaylor & Francis GroupGreen Chemistry Letters and Reviews1751-82531751-71922020-07-0113316517810.1080/17518253.2020.17940561794056Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiationMilad Taheri0Razieh Mohebat1Department of Chemistry, Yazd Branch, Islamic Azad UniversityDepartment of Chemistry, Yazd Branch, Islamic Azad UniversityA new one-pot method for the synthesis four-component of pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl)methanone derivatives has been developed in the presence of nano Fe3O4@TiO2-SO3H catalysts (heterogeneous acid) under microwave conditions and in a solvent-free environment at 180 W. One of the benefits of using this catalyst was its re-use in subsequent stages of its reaction without much loss in its activity, which was carried out by an external magnet and recovered. The catalyst was synthesized and characterized by XRD, EDX, TEM, FESEM, TGA-DTA, BET, VSM and AFM. The productivity of the products obtained from this protocol (MAOS) is significantly high and the shorter reaction time in the synthesis process over the reflux method. These results showed advantages for synthesis, such as mild reaction conditions, no use of toxic catalysts in the laboratory, solvent-free environment, low energy consumption and Economically Affordable.http://dx.doi.org/10.1080/17518253.2020.1794056nano fe3o4@tio2-so3hheterogeneous acidmicrowave irradiationsmulti-component reaction (mcrs) |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Milad Taheri Razieh Mohebat |
| spellingShingle |
Milad Taheri Razieh Mohebat Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation Green Chemistry Letters and Reviews nano fe3o4@tio2-so3h heterogeneous acid microwave irradiations multi-component reaction (mcrs) |
| author_facet |
Milad Taheri Razieh Mohebat |
| author_sort |
Milad Taheri |
| title |
Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation |
| title_short |
Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation |
| title_full |
Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation |
| title_fullStr |
Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation |
| title_full_unstemmed |
Synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using Fe3O4@TiO2-SO3H as a recoverable magnetic catalyst under microwave irradiation |
| title_sort |
synthesis of one-pot pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl) methanone derivatives via a multi-component using fe3o4@tio2-so3h as a recoverable magnetic catalyst under microwave irradiation |
| publisher |
Taylor & Francis Group |
| series |
Green Chemistry Letters and Reviews |
| issn |
1751-8253 1751-7192 |
| publishDate |
2020-07-01 |
| description |
A new one-pot method for the synthesis four-component of pyrazolo[4′,3′:5,6]pyrano[2,3-c]phenazin-15-yl)methanone derivatives has been developed in the presence of nano Fe3O4@TiO2-SO3H catalysts (heterogeneous acid) under microwave conditions and in a solvent-free environment at 180 W. One of the benefits of using this catalyst was its re-use in subsequent stages of its reaction without much loss in its activity, which was carried out by an external magnet and recovered. The catalyst was synthesized and characterized by XRD, EDX, TEM, FESEM, TGA-DTA, BET, VSM and AFM. The productivity of the products obtained from this protocol (MAOS) is significantly high and the shorter reaction time in the synthesis process over the reflux method. These results showed advantages for synthesis, such as mild reaction conditions, no use of toxic catalysts in the laboratory, solvent-free environment, low energy consumption and Economically Affordable. |
| topic |
nano fe3o4@tio2-so3h heterogeneous acid microwave irradiations multi-component reaction (mcrs) |
| url |
http://dx.doi.org/10.1080/17518253.2020.1794056 |
| work_keys_str_mv |
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