75075-93-3

Upstream product

• 75075-90-0 <5-(2-acetylamino)-phenyl-1,3,4-trimethyl-1H-pyrazole> 
• 85434-10-2 1,3,4-trimethyl-5-(2-nitrophenyl)-1H-pyrazole 
• 75075-92-2 3-methyl-3-(2-nitro)-benzoyl-2,4-pentanedione 
• 80-48-8 methyl p-toluene sulfonate 
• 59169-69-6 1-(2'-aminobenzoyl)-1-methylhydrazine 
• 75075-87-5 4--3-methyl-4-penten-2-one 

Relevant academic research and scientific papers

THE RING CLOSURE AND REARRANGEMENT OF N-2-AMINOBENZOYL-N-METHYLHYDRAZONES OF β-DICARBONYL COMPOUNDS

A novel rearrangement was observed during the cyclization of N-(2-aminobenzoyl)-N-methylhydrazones of β-dicarbonyl compounds, leading to pyrazole derivatives 2, 4, and 5 depending on substituents and the reaction media.

THE RING CLOSURE AND REARRANGEMENT OF 1-(2-AMINO)-BENZOYL-1-METHYLHYDRAZONES OF β-DICARBONYL COMPOUNDS: ON THE FORMATION AND CRYSTAL STRUCTURE OF 3a,9a-DIHYDRO-1,3,3a,9a-TETRAMETHYL-4H-PYRAZOLOQUINOLIN-4-ONE

The conversion of 1-(2-amino)-benzoyl-1-methylhydrazones of β-dicarbonyl compounds into heterocyclic derivatives yielded in addition to the already known type of product 2 further three novel pyrazole derivatives 3, 4, and 5.The structures of these products have been established by chemical and spectroscopic (MS) methods.The crystal structure of 5 has been determined by X-ray diffraction.