71821-99-3

Upstream product

• 147251-06-7 4,4-dimethyl-5-(p-tolyl)hex-5-en-2-one 
• 171731-07-0 4,5-dimethyl-4-(p-tolyl)hex-5-en-2-one 
• 619-55-6 para-methylbenzamide 
• 50390-51-7 4'-methylisobutyrophenone 

Downstream Products

• 58812-72-9 4,4-dimethyl-3-(4-methylphenyl)-cyclopent-2-en-1-one 

Relevant academic research and scientific papers

Isomerization of 4-aryl-4-methylhex-5-en-2-ones to 5-aryl-4-methylhex-5-en-2-ones by an intramolecular ene-retro ene reaction sequence

Acid-catalyzed thermal rearrangement of 4-aryl-4-methylhex-5-en-2-ones (products of the Claisen rearrangement of β-methylcinnamyl alcohols and 2-methoxypropene) to isomeric 5-aryl-4-methylhex-5-en-2-ones via an intramolecular ene reaction of the enol taut

Acid-catalysed Thermal Rearrangement of γ,δ-Unsaturated Ketones

Thermal activation of γ,δ-unsaturated ketones (1, 9 and 12) in the presence of a catalytic amount of propionic acid causes a rearrangement to give new γ,δ-unsaturated ketones (2, 10 and 14) via an intramolecular ene reaction followed by a retro-ene reacti