80884-12-4

Upstream product

• 80884-10-2 2-(3-Methyl-5-phenyl-4,5-dihydro-pyrazol-1-yl)-pyridine 
• 4930-98-7 pyrid-2-ylhydrazine 
• 93-91-4 1-phenylbutan-1,3-dione 
• 80884-08-8 N-[(E)-1-Methyl-3-phenyl-prop-2-en-(Z)-ylidene]-N'-pyridin-2-yl-hydrazine 
• 122-57-6 1-Phenylbut-1-en-3-one 
• 70769-77-6 (Z)-4-Ethylsulfanyl-4-phenyl-but-3-en-2-one 

Relevant academic research and scientific papers

Regioselective synthesis of multisubstituted pyrazoles via cyclocondensation of β-thioalkyl-α,β-unsaturated ketones with hydrazines

Multisubstituted pyrazoles were efficiently synthesized by cyclocondensation of β-thioalkyl-α,β-unsaturated ketones with hydrazines under relatively mild conditions. A one-pot synthetic protocol through tandem Liebeskind-Srogl cross-coupling/cyclocondensation using a-oxo ketene dithioacetals as the starting materials was also realized for the same purpose.

Layered zirconium sulfophenyl phosphonate as heterogeneous catalyst in the synthesis of pyrazoles and 4,5,6,7-tetrahydro-1(2)H-indazoles

Pyrazoles and tetrahydroindazoles may be prepared by condensation of 1,3-diones and hydrazines under layered zirconium sulfophenyl phosphonate catalysis, in solvent-free conditions. Georg Thieme Verlag Stuttgart.