39257-08-4

Upstream product

• 412016-77-4 1-(α-hydroxy-isopropyl)-2-methyl-cyclopentanol 
• 39256-99-0 2-methyl-7-octen-3-one 
• 1551-89-9 trans-2,3-dimethylcyclohexanone 
• 1120-72-5 2-Methylcyclopentanone 
• 1121-18-2 2-methyl-2-cyclohexen-1-one 
• 98361-28-5 2,3-dimethyl-1-trimethylsilyloxycyclohexene 
• 74-88-4 methyl iodide 
• 54313-25-6 4-penten-1-yllithium 
• 112126-29-1 2-Methyl-1-(1-methyl-1-methylselanyl-ethyl)-cyclopentanol 
• 144406-32-6 2,2,3-trimethylstannyl-3-trimethylstannylcyclohexanone 

Downstream Products

• 107233-35-2 6-Hydroxy-methylen-2,2,3-trimethyl-cyclohexanon-⁽¹⁾ 
• 100428-69-1 (+/-)-cis-2,2,3-trimethyl-6-methylene-cyclohexylacetaldehyde 
• 91055-80-0 3,3,4-trimethylcyclohex-1-enecarbaldehyde 
• 96715-00-3 1,1,2-Trimethyl-5-methylen-6-acetonyl-cyclohexan 
• 92370-89-3 6-(Isobutyloxy-methylen)-2,2,3-trimethyl-cyclohexanon-⁽¹⁾ 
• 112967-39-2 3,3,4-trimethyl-1-cyclohexenyl methyl vinyl ether 
• 92037-13-3 1,1,2-Trimethyl-5-methylen-6-(β-hydroxy-ethyl)-cyclohexan 
• 90974-65-5 1-hydroxymethyl-3,3,4-trimethyl-1-cyclohexene 

Relevant academic research and scientific papers

Access to 1,2-diketones by an unusual radical cascade

An unusual radical fragmentation of an unstrained cyclohexane structure was observed leading to complex 1,2-diketones.

Dependence of the Lewis Acid-Induced Reaction of β-Stannyl Ketones upon Substitution Pattern: Cyclopropanation versus 1,2-Alkyl Migration

3-Stannylcyclohexanones fully substituted at 2 and 3 positions underwent a 1,2-aklyl migration, along with the cyclopropanation.The balance of the reactions depended upon the steric environment and migratory aptitude of the alkyl groups.

Dependence of the Lewis Acid-induced Reaction of β-stannyl Ketones upon Substitution Pattern. 1,2-Alkyl Migration versus Cyclopropanation

3-Stannylcyclohexanones fully substituted at 2 and 3 positions undergo a 1,2-alkyl migration and cyclopropanation.The balance of the reaction pattern depends upon the steric environment and migratory aptitude of the alkyl groups.

Regiochemistry of the Ring Expansion of Unsymmetrically Substituted Ketones involving β-Hydroxyalkylselenides

β-hydroxyalkylselenides derived from unsymmetrically substituted ketones have been rearranged to substituted ketones in the presence of soft electrophiles such as silver tetrafluoroborate or dichlorocarbenes.Although the migration of the more substituted carbon often prevails, subtle variations have been observed depending upon the structure of the starting material and the experimental conditions used.

Cycloaliphatic unsaturated ketones as odour- and taste-modifying agents

Process for the preparation of unsaturated cycloaliphatic ketones useful as perfuming and odour-modifying agents in the manufacture of perfumes and perfumed products, and as flavouring and taste-modifying agents in the aromatization of foodstuffs in general and imitation flavours for foodstuffs, beverages, animal feeds, pharmaceutical preparations and tobacco products. Compositions of matter relating to some of said unsaturated cycloaliphatic ketones which are new, and perfume- and flavouring compositions containing same.