Recyclization of 1,3-dialkyl-6-nitro-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones into imidazole derivatives
- Авторлар: Lomov D.A.1
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Мекемелер:
- Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry
- Шығарылым: Том 52, № 1 (2016)
- Беттер: 51-53
- Бөлім: Article
- URL: https://journal-vniispk.ru/1070-4280/article/view/213479
- DOI: https://doi.org/10.1134/S1070428016010103
- ID: 213479
Дәйексөз келтіру
Аннотация
Treatment of 5-amino-1,3-dialkyl-2,3-dihydro-1H-imidazo[4,5-b]pyridin-2-ones with sodium nitrite in aqueous HCl gave 1,3-dialkyl-1H-imidazo[4,5-b]pyridine-2,5(3H,4H)-diones which were nitrated with potassium nitrate in sulfuric acid to 6-nitro derivatives, and the latter underwent recyclization into 4-amino-1,3-dialkyl-5-(1H-pyrazol-5-yl)-2,3-dihydro-1H-imidazol-2-ones by the action of hydrazine hydrate.
Негізгі сөздер
Авторлар туралы
D. Lomov
Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry
Хат алмасуға жауапты Автор.
Email: lomov_dmitrii@mail.ru
Украина, ul. R. Lyuksemburg 70, Donetsk, 83114
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