67885-79-4

Upstream product

• 67885-76-1 2-((1R,3R)-3-Bromo-2,2-dimethyl-cyclopropylmethoxy)-tetrahydro-pyran 
• 19493-09-5 Methylenetriphenylphosphorane 
• 87057-24-7 2,2-dibromo-3,3-dimethylcyclopropanecarboxaldehyde 
• 17219-12-4 (2,2‐dibromo‐3,3‐dimethylcyclopropyl)methanol 
• 67885-77-2 1,1-dibromo-2,2-dimethyl-3-vinylcyclopropane 
• 1779-49-3 Methyltriphenylphosphonium bromide 
• 87057-25-8 trans-2-bromo-3,3-dimethylcyclopropanecarboxaldehyde 
• 54105-78-1 1-[(tetrahydro-2H-pyran-2-yl)oxy]-3-methyl-2-butene 
• 67885-75-0 2,2-Dibromo-3,3-dimethylcyclopropylmethyl 2-Tetrahydropyranyl Ether 
• 87050-58-6 trans-2-bromo-3-(hydroxymethyl)-1,1-dimethylcyclopropane 

Downstream Products

• 67885-80-7 trans-3-(2,2-dimethyl-3-vinylcyclopropyl)-2-cyclohexen-1-one 
• 67885-80-7 cis-3-(2,2-dimethyl-3-vinylcyclopropyl)-2-cyclohexen-1-one 
• 67885-81-8 trans-2-methyl-3-(2,2-dimethyl-3-vinylcyclopropyl)-2-cyclohexen-1-one 
• 67885-81-8 cis-2-methyl-3-(2,2-dimethyl-3-vinylcyclopropyl)-2-cyclohexen-1-one 

Relevant academic research and scientific papers

Seven-membered ring annulation and spiro-annulation processes via preparation and thermal rearrangement of β-(2-vinylcyclopropyl) α,β-unsaturated ketones

Treatment of the β-iodo enones 4 and 26-28 with lithium (phenylthio)(2-vinylcyclopropyl)cuprate (21, mixtures of epimers), followed by thermolysis (180 deg C, 30-45 min) of the initially formed β-(2-vinylcyclopropyl) enones, provided excellent yields of t