Zhang, Yonghong published the artcileHighly Efficient Bronsted Acidic Ionic Liquid Promoted Direct Diazenylation of Pyrazolones with Aryltriazenes under Mild Conditions, Product Details of C10H9ClN2O, the publication is Asian Journal of Organic Chemistry (2017), 6(1), 102-107, database is CAplus.
The first Bronsted acidic ionic liquid (IL) promoted reaction of 5-pyrazolones with aryltriazenes to prepare arylazopyrazolones is described. The reaction was carried out with the aryltriazenes as diazotizing agents, water as the solvent, and the ionic liquid as the promoter at room temperature under air and metal-free conditions. The desired products were obtained in good to excellent yields. Notably, a gram-scale experiment and a late-stage diazenylation reaction of a pharmaceutical derivative also furnished the desired products under mild conditions.
Asian Journal of Organic Chemistry published new progress about 14580-22-4. 14580-22-4 belongs to pyrazoles-derivatives, auxiliary class Organic Pigment, name is 1-(2-Chlorophenyl)-3-methyl-5-pyrazolone, and the molecular formula is C25H47NO8, Product Details of C10H9ClN2O.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics