17408-39-8

Upstream product

• 6295-87-0 N-aminopyridin-1-ium iodide 
• 614-47-1 1,3-diphenyl-propen-3-one 
• 39996-41-3 1-aminopyridinium mesitylenesulphonate 
• 7338-94-5 1,3-diphenyl-2-propynone 

Downstream Products

• 56983-95-0 2-phenylpyrazolo[1,5-a]pyridine 
• 115748-41-9 phenylbis(2-phenylpyrazolo<1,5-a>pyrid-3-yl)methane 
• 122001-23-4 Phenyl-(5-phenyl-1a,6b-dihydro-1-oxa-6,6a-diaza-cyclopropa[e]inden-4-yl)-methanone 
• 115748-47-5 3-(α-hydroxybenzyl)-2-phenylpyrazolo<1,5-a>pyridine 

Relevant academic research and scientific papers

Synthesis of Functionalized Pyrazolo[1,5-a]pyridines: [3+2] Cycloaddition of N-Aminopyridines and α,β-Unsaturated Carbonyl Compounds/Alkenes at Room Temperature

The synthesis of functionalized pyrazolo[1,5-a]pyridines through oxidative [3+2] cycloaddition of N-aminopyridines with α,β-unsaturated carbonyl compounds or electron-withdrawing olefins is described. The reactions proceed in N-methylpyrrolidone as the solvent under metal-free conditions at room temperature.

Acid-Catalyzed Reactions of 3-(α-Hydroxybenzyl)pyrazolopyridines

Treatment of 3-(α-hydroxybenzyl)pyrazolopyridines with trifluoroacetic acid in dichloromethane resulted in the formation of pyrazolopyridines, bispyrid-3-yl)benzyl> ethers, and phenylbis(pyrazolopyrid-3-yl)methanes,