Huang, Zhen-Zhong published the artcileA convenient oxidation of 5-substituted pyrazol-3(2H)-ones into methyl 2-alkynoates using poly[4-(diacetoxyiodo)styrene], Category: pyrazoles-derivatives, the main research area is pyrazolone polyacetoxyiodostyrene oxidation ring cleavage; alkynoate preparation; alkyne carboxylate preparation.
An operationally simple oxidation of 5-substituted pyrazol-3(2H)-ones to the corresponding Me 2-alkynoates in good yields with a mediated poly[4-(diacetoxyiodo)styrene] system in methanol and acetonitrile at room temperature was carried out. The polymeric reagent can be regenerated and reused as an environmentally benign reagent.
Journal of the Chinese Chemical Society (Taipei, Taiwan) published new progress about Alkynes Role: SPN (Synthetic Preparation), PREP (Preparation). 27412-71-1 belongs to class pyrazoles-derivatives, name is 5-Phenyl-1H-pyrazol-3(2H)-one, and the molecular formula is C9H8N2O, Category: pyrazoles-derivatives.
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics