Ring contraction of 1,2,4-triazine derivatives in the synthesis of imidazoles.

Autor:	Gazieva, G., Karpova, T., Nechaeva, T., Kravchenko, A.
Předmět:	TRIAZINE derivatives IMIDAZOLES CHEMICAL synthesis REDUCING agents OXIDIZING agents ORGANOMETALLIC compounds
Zdroj:	Russian Chemical Bulletin; Sep2016, Vol. 65 Issue 9, p2172-2182, 11p
Abstrakt:	The review systematizes the data on the reactions of 1,2,4-triazines proceeding with a triazine ring contraction to the imidazole one. Imidazole derivatives are obtained upon treatment of 1,2,4-triazines of different saturation degree with reducing agents, oxidants, acids, as well as with the agents initiating tandem reactions, the last step of which is a triazine ring contraction, for example, nitrosating and aminating agents, organometallic compounds and aromatic aldehydes. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu Full text from SpringerLink