58333-00-9Relevant articles and documents
Nitropyrazoles 15.* Synthesis and some transformations of 1-(2,4-dinitrophenyl)-4-methyl-3,5-dinitropyrazole
Zaitsev,Vatsadze,Dalinger,Kachala,Nelyubina,Shevelev
experimental part, p. 2109 - 2117 (2011/01/11)
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.
