Synthesis of allomaltol containing pyridazines and their photochemical transformation into substituted benzo[ h ]pyrano[2,3- f ]cinnolin-8-ones Научная публикация
| Журнал |
Organic & Biomolecular Chemistry
ISSN: 1477-0520 , E-ISSN: 1477-0539 |
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| Вых. Данные | Год: 2026, DOI: 10.1039/d6ob00173d | ||
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Реферат:
In this study, we developed an efficient two-step approach for the synthesis of novel terarylenes featuring an allomaltol substituent and a pyridazine bridge and investigated their photochemical behavior. The proposed strategy is based on the initial reaction of methylene-active allomaltol derivatives with aromatic arylglyoxals, followed by condensation of the resulting diaroylethene with hydrazine. It was found that the obtained terarylenes do not undergo any photochemical transformations under UV irradiation. However, modification of the hydroxyl group through acylation overcomes this limitation and directs the photoreaction toward 6π-electrocyclization. This study provides a convenient method for accessing previously unknown benzo[h]pyrano[2,3-f]cinnolin-8-one derivatives and demonstrates that their acylated precursors can serve as efficient photoacid generators.
Библиографическая ссылка:
Migulin A.V.
, Milyutin C.V.
, Komogortsev A.N.
Synthesis of allomaltol containing pyridazines and their photochemical transformation into substituted benzo[ h ]pyrano[2,3- f ]cinnolin-8-ones
Organic & Biomolecular Chemistry. 2026. DOI: 10.1039/d6ob00173d WOS Scopus OpenAlex
Synthesis of allomaltol containing pyridazines and their photochemical transformation into substituted benzo[ h ]pyrano[2,3- f ]cinnolin-8-ones
Organic & Biomolecular Chemistry. 2026. DOI: 10.1039/d6ob00173d WOS Scopus OpenAlex
Даты:
| Поступила в редакцию: | 29 янв. 2026 г. |
| Принята к публикации: | 17 мар. 2026 г. |
| Опубликована в печати: | 24 мар. 2026 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:001721207700001 |
| ≡ Scopus: | 2-s2.0-105033806238 |
| ≡ OpenAlex: | W7140204867 |