105592-65-2

Upstream product

• 3418-21-1 2-(bromomethyl)-2-phenyl-1,3-dioxolane 
• 60-34-4 methylhydrazine 

Downstream Products

• 105592-60-7 2-[Methyl-(2-phenyl-[1,3]dioxolan-2-ylmethyl)-hydrazono]-1-p-tolyl-ethanone 
• 105592-61-8 1-(4-Bromo-phenyl)-2-[methyl-(2-phenyl-[1,3]dioxolan-2-ylmethyl)-hydrazono]-ethanone 
• 105592-59-4 2-[Methyl-(2-phenyl-[1,3]dioxolan-2-ylmethyl)-hydrazono]-1-phenyl-ethanone 
• 105592-62-9 3-benzoyl-4-phenyl-1-methylpyrazole 
• 109277-27-2 N'-Eth-(E)-ylidene-N-methyl-N-(2-phenyl-[1,3]dioxolan-2-ylmethyl)-hydrazine 
• 109277-26-1 N-Methyl-N-(2-phenyl-[1,3]dioxolan-2-ylmethyl)-N'-[1-phenyl-meth-(E)-ylidene]-hydrazine 
• 105592-64-1 3-(p-bromobenzoyl)-4-phenyl-1-methylpyrazole 
• 105592-63-0 3-(p-toluyl)-4-phenyl-1-methylpyrazole 
• 109277-31-8 1-methyl-2,4-diphenyl-1H-imidazole 
• 57389-73-8 3,4-diphenyl-1-methylpyrazole 

Relevant academic research and scientific papers

AN UNEXPECTED CYCLIZATION PATH TO SOME PYRAZOLES

The treatment of ketal hydrazones of arylglyoxals (2) with 75percent sulfuric acid leads to 3-aroyl-4-phenyl-1-methylpyrazoles (6) as well as 4-phenyl-1-methylpyrazole (7) and the corresponding benzoic acids.Possible mechanisms are discussed.

Benzoyl phenyl 1-methylpyrazoles. Synthesis, characterization, and spectra

The synthesis and unequivocal characterization of all six isomers of benzoyl phenyl 1-methylpyrazole (2) are described.The isomer of 2 isolated as one of the products of the reaction of 1,1-dimethyl-1-phenacylhydrazinium bromide (1) with base was shown to be only previously reported isomer, 5-benzoyl-3-phenyl-1-methylpyrazole (2b).