Synthesis of 2,3-Dihydro-1H-imidazo[1,2-a]pyridinium Systems by Halocyclization of 1-Alkenyl(propargyl)-2-aminopyridinium Halides
- Autores: Kalita E.1, Kim D.1, Rakhmatullina D.1, Pylneva M.1, Krynina E.1
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Afiliações:
- South Ural State University (National Research University)
- Edição: Volume 89, Nº 8 (2019)
- Páginas: 1570-1574
- Seção: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/223020
- DOI: https://doi.org/10.1134/S107036321908005X
- ID: 223020
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Resumo
Reaction of 2-aminopyridine with allyl bromide, methallyl chloride, 2-bromoallyl bromide, and propargyl bromide in acetone furnished 2-amino-1-allyl-, methallyl-, (2-bromoallyl)-, and propargylpyridinium halides. 2-Amino-1-allyl(methallyl)pyridinium halides reacted with bromine and iodine to form 2-halomethyl-2,3-dihydro-1H-imidazo[1,2-a]pyridinium systems. 2-Amino-1-(2-bromoallyl)pyridinium bromide underwent heterocyclization under the action of bromine, and did not react with iodine. 2-Amino-1-propargylpyridinium bromide reacted with bromine and iodine to form 2-halomemylene-2,3-dihydro-1H-imidazo[1,2-a]pyridinium systems.
Sobre autores
E. Kalita
South Ural State University (National Research University)
Autor responsável pela correspondência
Email: berdnik_lena@mail.ru
Rússia, pr. Lenina 76, Chelyabinsk, 454080
D. Kim
South Ural State University (National Research University)
Email: berdnik_lena@mail.ru
Rússia, pr. Lenina 76, Chelyabinsk, 454080
D. Rakhmatullina
South Ural State University (National Research University)
Email: berdnik_lena@mail.ru
Rússia, pr. Lenina 76, Chelyabinsk, 454080
M. Pylneva
South Ural State University (National Research University)
Email: berdnik_lena@mail.ru
Rússia, pr. Lenina 76, Chelyabinsk, 454080
E. Krynina
South Ural State University (National Research University)
Email: berdnik_lena@mail.ru
Rússia, pr. Lenina 76, Chelyabinsk, 454080