110606-80-9

Upstream product

• 87885-78-7 1-Benzoyl-4,5-dihydro-3,4,4-trimethyl-5-methylene-1H-pyrazole 
• 25939-01-9 p-toluoyl chloride phenylhydrazone 

Downstream Products

• 110606-87-6 5-(1,1-dimethyl-2-oxopropyl)-1-phenyl-3-(p-tolyl)-1H-pyrazole 
• 110606-81-0 5-<2-(benzoylhydrazono)-1,1-dimethylpropyl>-1-phenyl-3-(p-tolyl)-1H-pyrazole 

Relevant academic research and scientific papers

1,3-Dipolar Cycloaddition Reactions of Nitrilimines with 1-Aroyl-4,5-dihydro-3,4,4-trimethyl-5-methylene-1H-pyrazoles. Synthesis of 6-Aroyl-8,9,9-trimethyl-1,2,6,7-tetrazaspironona-2,7-dienes

From the 1,3-dipolar cycloaddition reactions of 5-methylene-1H-pyrazoles 3 with N-arylnitrilimines the novel spiro-cycloadducts 4 were isolated, in addition to the corresponding 5-(2-aroylhydrazono-1,1-dimethylpropyl)-1H-pyrazoles 5.These pyrazoles 5 were the only products from the reactions of 3 with N-methylnitrilimine 2d.The chemical behaviour of the spiro-cycloadducts 4 was also examined.