Аннотация:
We have shown that in reductive condensation of trichloromethylarenes with hydroxylamine and hydrazines in pyridine the reduction stage, involving the exchange of one chlorine atom for a hydrogen atom, can proceed without participation of hydroxylamine or hydrazine via the interaction of trichloromethylarene with pyridine leading to the formation of N-[N′-(α-chlorobenzyl- 4-pyridyl)]pyridinium salts which give after hydrolysis N-(4-pyridyl)pyridinium dichloride and respective aromatic aldehydes in high yields.
Тип публикации:
Статья
Язык публикации: английский
Образец цитирования:
L. I. Belen'kii, I. S. Poddubny, M. M. Krayushkin, “Reaction of Trichloromethylarenes with Pyridine: A Novel Synthesis of N-(4-Pyridyl)pyridinium Salts and Aromatic Aldehydes”, Mendeleev Commun., 3:3 (1993), 97–98
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/mendc5283
https://www.mathnet.ru/rus/mendc/v3/i3/p97
Эта публикация цитируется в следующих 6 статьяx:
Ernst Anders, Kurt Wermann, Jean Jacques Vanden Eynde, Advances in Heterocyclic Chemistry, 77, 2000, 183
I. S. Poddubnyi, L. I. Belen'kii, M. M. Krayushkin, “Reactions of trichloromethylarenes with hydrazine derivatives. Synthesis of 2,5-disubstituted 1,3,4-oxadiazoles and 1,3,4-thiadiazoles”, Russ Chem Bull, 45:5 (1996), 1185
Leonid I. Belen'kii, Igor S. Poddubnyi, Mikhail M. Krayushkin, “A new redox system: Trichloromethylarene — pyridine base. On the mechanism of the synthesis of N-(4-pyridyl)pyridinium dichloride”, Tetrahedron Letters, 36:28 (1995), 5075
J.E. Toomey, R. Murugan, Progress in Heterocyclic Chemistry, 6, A Critical Review of the 1993 Literature Preceded by Two Chapters on Current Heterocyclic Topics, 1994, 206
L. I. BELEN'KII, I. S. PODDUBNY, M. M. KRAYUSHKIN, “ChemInform Abstract: Reaction of Trichloromethylarenes with Pyridine: A Novel Synthesis of N‐(4‐Pyridyl)pyridinium Salts and Aromatic Aldehydes.”, ChemInform, 25:33 (1994)
L. I. Belen'kii, I. S. Poddubnyi, M. M. Krayushkin, “Initial steps in the reductive condensation of trichloromethylarenes with hydroxylamine and hydrazines in pyridine”, Russ Chem Bull, 42:11 (1993), 1844
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