1263324-79-3

Upstream product

• 110625-50-8 2-(1-methyl-5-phenyl-4,5-dihydro-1H-pyrazol-3-yl)pyridine 
• 1263324-77-1 tert-butyl 1-methyl-2-(3-oxo-3-phenyl-1-(pyridin-2-yl)propylidene)hydrazinecarboxylate 
• 1263324-67-9 C₁₃H₁₉N₃O₂ 
• 98-88-4 benzoyl chloride 

Relevant academic research and scientific papers

Simple pyrazoline and pyrazole "turn on" fluorescent sensors selective for Cd2+ and Zn2+ in MeCN

An efficient two-step synthesis of pyrazoline ligand 1 is described which is an effective "turn on" fluorescent sensor for Cd2+ in MeCN. Oxidation to the corresponding pyrazole ligand 2 creates a "turn on" fluorescent sensor now selective for Zn2+ and able to distinguish it from Cd2+.

Regioselective synthesis of 1,3,5- and 1,3,4,5-substituted pyrazoles via acylation of N-Boc-N-substituted hydrazones

Acylation of N-Boc-N-methylhydrazones followed by TFA treatment affords regioselective access to substituted pyrazoles. Both regioisomers of 1-methyl-3,5-disubstituted-1H-pyrazoles can be selectively obtained. This procedure can also be employed for the r