A New Versatile Protocol for the Synthesis of Indazolophthalazinetriones
Abstract Potassium hydrogen sulfate ($ KHSO_{4} $) and trifluoromethanesulfonic acid ($ CF_{3} $$ SO_{3} $H) were separately used as efficient catalysts for the one-pot three-component synthesis of a series of indazolophthalazinetriones from various aldehydes, dimedone, and 2,3-dihydrophthalazine-1,4-dione at 80°C under solvent-free conditions in good to excellent yields. It was found that trifluoromethanesulfonic acid is a more efficient catalyst than potassium hydrogen sulfate since $ CF_{3} $$ SO_{3} $H is a stronger acid than $ KHSO_{4} $, and the corresponding intermediate will probably be formed at a higher rate and be more stable..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:57 |
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| Enthalten in: |
Russian journal of organic chemistry - 57(2021), 1 vom: Jan., Seite 85-90 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Habibi, D. [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Anmerkungen: |
© Pleiades Publishing, Ltd. 2021 |
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| doi: |
10.1134/S1070428021010127 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
OLC2123996947 |
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| 245 | 1 | 0 | |a A New Versatile Protocol for the Synthesis of Indazolophthalazinetriones |
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| 500 | |a © Pleiades Publishing, Ltd. 2021 | ||
| 520 | |a Abstract Potassium hydrogen sulfate ($ KHSO_{4} $) and trifluoromethanesulfonic acid ($ CF_{3} $$ SO_{3} $H) were separately used as efficient catalysts for the one-pot three-component synthesis of a series of indazolophthalazinetriones from various aldehydes, dimedone, and 2,3-dihydrophthalazine-1,4-dione at 80°C under solvent-free conditions in good to excellent yields. It was found that trifluoromethanesulfonic acid is a more efficient catalyst than potassium hydrogen sulfate since $ CF_{3} $$ SO_{3} $H is a stronger acid than $ KHSO_{4} $, and the corresponding intermediate will probably be formed at a higher rate and be more stable. | ||
| 700 | 1 | |a Shojaei, S. |4 aut | |
| 700 | 1 | |a Heydari, S. |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Russian journal of organic chemistry |d Pleiades Publishing, 1993 |g 57(2021), 1 vom: Jan., Seite 85-90 |w (DE-627)17133048X |w (DE-600)1178256-0 |w (DE-576)03887380X |x 1070-4280 |7 nnns |
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