123716-81-4

Upstream product

• 16735-22-1 3-hydroxy-2-methylpropiophenone 
• 769-60-8 2-methyl-1-phenylprop-2-en-1-one 
• 123716-68-7 1-(4-methyl-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethanone 

Downstream Products

• 1773-12-2 3-Phenyl-4-methyl-4,5-dihydropyrazole 
• 123716-70-1 1-Benzoyl-3-phenyl-4-methyl-4,5-dihydropyrazole 
• 123716-68-7 1-(4-methyl-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)ethanone 

Relevant academic research and scientific papers

Reinvestigation of the Reaction of 3-Hydroxy-2-methyl-1-aryl-1-propanones and Related Compounds with Hydrazine and Carboxylic Acids

The reaction between the title compounds and hydrazine hydrate in an appropriate carboxylic acid gave 1-acyl/aroyl-3-aryl-4-methyl-4,5-dihydropyrazoles 9, instead of 2,5,6-trisubstituted 6,7-dihydro-1,3,4-oxadiazepines as previously reported.Evidence is presented for the attribution of the correct structure and for the reaction mechanisms involved.