Nitu, Sabina published the artcileAzoic compounds obtained from 1H-5-amino-4-ethoxycarbonyl-3-methyl-pyrazole and phenols or phenolic derivatives, Category: pyrazoles-derivatives, the publication is Revista de Chimie (Bucharest, Romania) (2008), 59(12), 1352-1354, database is CAplus.
The coupling of 1H-4-ethoxycarbonyl-3-methyl-pyrazol-5-yldiazonium chloride with phenols and Ph ethers I (R1 = H, Me, PhCH2; R2 = 4-Me, 3-MeO, 2,4-F2, etc.) affords the corresponding arylazopyrazoles II which were characterized by TLC, IR, VIS and NMR spectroscopy. The similar reaction with 4-hydroxybenzoic acid was accompanied by decarboxylation to give (4-hydroxyphenyl)azo derivatives
Revista de Chimie (Bucharest, Romania) published new progress about 23286-70-6. 23286-70-6 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Amine,Ester, name is Ethyl 5-amino-3-methyl-1H-pyrazole-4-carboxylate, and the molecular formula is C7H11N3O2, Category: pyrazoles-derivatives.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics