Nitropyrazoles 15. Synthesis and some transformations of 1-(2,4-dinitrophenyl)-4-methyl-3,5-dinitropyrazole.

Autor:	Zaitsev, A., Vatsadze, I., Dalinger, I., Kachala, V., Nelyubina, Yu., Shevelev, S.
Předmět:	PYRAZOLES ORGANIC synthesis CHEMICAL reactions ALDEHYDES NITRATION ENAMINES REARRANGEMENTS (Chemistry) NUCLEOPHILIC reactions
Zdroj:	Russian Chemical Bulletin; Oct2009, Vol. 58 Issue 10, p2109-2117, 9p
Abstrakt:	The method for preparation of 1-(2,4-dinitrophenyl)-4-methyl-3,5-dinitropyrazole has been developed. Due to the larger CH-acidity of 4-Me-group compared to 1,4-dimethyl-3,5-dinitropyrazole, 1-(2,4-dinitrophenyl)-4-methyl-3,5-dinitropyrazole is capable of reacting with substituted benzaldehydes to afford 4-[( E)-2-arylvinyl]-1-(2,4-dinitrophenyl)-3,5-dinitropyrazoles. Under the action of nucleophiles, dinitrophenyl group is detached from the former compounds leading to previously unknown N-unsubstituted 4-[( E)-2-arylvinyl]-3,5-dinitropyrazoles. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu Full text from SpringerLink