Khan, Misbahul Ain published the artcilePyranopyrazoles. II. Synthesis and reactions of 1H,6H-pyrano[2,3-c]pyrazol-6-ones, Computed Properties of 14580-22-4, the publication is Journal of Heterocyclic Chemistry (1982), 19(5), 1077-85, database is CAplus.
Pyranopyrazolones I [R = H, Me, (un)substituted Ph; R1, R2 = Me, Ph; R3 = H] were prepared by treating R1COCH2CO2Et with RNHNH2 or II. Nitration, chlorination, and bromination of these pyranopyrazolones gave I (R3 = NO2, Cl, Br). The substitution products are formed by addition-elimination.
Journal of Heterocyclic 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 C10H9ClN2O, Computed Properties of 14580-22-4.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics