Recently I am researching about SIGMA-COMPLEX FORMATION; MEISENHEIMER COMPLEXES; HETEROAROMATIC SUBSTITUTIONS; 3+2 CYCLOADDITION; 4,6-DINITROBENZOFUROXAN; REACTIVITY; NUCLEOPHILES; 4-AZA-6-NITROBENZOFUROXAN; 4,6-DINITRO-BENZOFUROXAN; HETEROCYCLES, Saw an article supported by the Russian Science FoundationRussian Science Foundation (RSF) [19-73-20259]. Category: pyrazoles-derivatives. Published in MDPI in BASEL ,Authors: Bastrakov, MA; Fedorenko, AK; Starosotnikov, AM; Fedyanin, IV; Kokorekin, VA. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole
A number of novel 6-R-isoxazolo[4,3-b]pyridines were synthesized and their reactions with neutral C-nucleophiles (1,3-dicarbonyl compounds, pi-excessive (het)arenes, dienes) were studied. The reaction rate was found to be dependent on the nature of the substituent 6-R. The most reactive 6-nitroisoxazolo[4,3-b]pyridines are able to add C-nucleophiles in the absence of a base under mild conditions. In addition, these compounds readily undergo [4+2]-cycloaddition reactions on aromatic bonds C=C(NO2) of the pyridine ring, thus indicating the superelectrophilic nature of 6-NO2-isoxazolo[4,3-b]pyridines.
About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Bastrakov, MA; Fedorenko, AK; Starosotnikov, AM; Fedyanin, IV; Kokorekin, VA or concate me.. Category: pyrazoles-derivatives
Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics