31191-93-2

Basic information

• Product Name: 2-Buten-1-one, 1-(2,2-dimethyl-6-methylenecyclohexyl)-, (E)-
• Synonyms: (E)-1-(2,2-Dimethyl-6-methylene-cyclohexyl)-but-2-en-1-one;γ-damascone trans;damascone gamma;γ-damascone;6,6-Dimethyl-2-methylen-1-trans-crotonyl-cyclohexan;trans-6,6-Dimethyl-2-methylen-1-crotonoyl-cyclohexan;6,6-dimethyl-2-methylene-1-crotonoylcyclohexane
• CAS NO: 31191-93-2
• Molecular Formula: C13H20O
• Molecular Weight: 192.301
• Mol File: 31191-93-2.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: 2-Buten-1-one, 1-(2,2-dimethyl-6-methylenecyclohexyl)-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Buten-1-one, 1-(2,2-dimethyl-6-methylenecyclohexyl)-, (E)-(31191-93-2)
• EPA Substance Registry System: 2-Buten-1-one, 1-(2,2-dimethyl-6-methylenecyclohexyl)-, (E)-(31191-93-2)

Safety Data

• Hazardous Substances Data: 31191-93-2(Hazardous Substances Data)

Upstream product

• 122203-48-9 4-(2',2'-dimethyl-6'-methylidenecyclohexyl)-1,6-heptadien-4-ol 
• 109988-96-7 methyl-γ-dithiocyclogeranate 
• 503-47-9 1,3,3-trimethyl-1-cyclohexene 
• 29481-98-9 1,3-dimethyl-2-cyclohexen-1-ol 
• 1193-18-6 3-methylcyclohexen-2-one 
• 49815-58-9 6,6-dimethyl-2-methyl-1-cyclohexene-1-carboxylic acid methyl ester 
• 76786-84-0 7,7-dimethyl-5,6,7,7a-tetrahydro-1(3H)-isobenzofuranone 
• 81752-87-6 methyl (+/-)-2,2-dimethyl-6-methylene-1-cyclohexanecarboxylate 
• 54345-56-1 (8,8-dimethyl-4-methylene)-1-oxaspiro<2.5>octane 
• 54201-08-0 acetyl-2 dimethyl-3,3 methylene-1 cyclohexane 
• 75-07-0 acetaldehyde 
• 73956-65-7 1-(2'-2'-dimethyl-6'-methylidenecyclohexyl)-3-buten-1-one 
• 109988-97-8 6,6-dimethyl-2-methylene-(1(Z)-methylthio-1,3-butadiene)-1-yl cyclohexane 

Downstream Products

• 24720-09-0 α-damascone 

Relevant articles and documents

New preparation methods for α-damascone, γ-damascone, and β-damascenone using pyronenes

γ- and δ-Pyronenes are terpenic synthons easily available from myrcene. They are used as intermediates in the synthesis of α-damascone, γ-damascones, and β-damascenone. Copyright Taylor & Francis Group, LLC.

HYDROLYSE ACIDO-CATALYSEE D'UN SULFURE DE DIENYLE APPLICATION A LA SYNTHESE DE LA gamma-DAMSCONE

A new synthetic route to γ-Damascone 1 starting with methyl-γ-dithiocyclogeranate 2 is described.Addition of HMPT was found necessary to perform the carbophilic addition of allylmagnesium bromide on dithioester 2.A dienylsulfide, 6,6-dimethyl-2-methylene-(1-methylthio-1,3-butadiene)-1-yl cyclohexane 3 resulted from this addition, and not the expected dithioketal.Following a number of described conditions, hydrolysis of 3 to γ-damascone 1 proved to be unsatisfactory.These initial attempts but showed the necessity for an acidic medium.This finding allowed the development of a new, very mild method of hydrolysis of dienylsulfides to unsaturated ketones.

Utilisation du N,N-dimethylaminol-acetonitrile pour la synthese regioselective de diallylcetones masquees. Application a la synthese de la γ-damascone

A general synthetic approach to diallyl-ketones protected as α-amino-nitriles is reported.Starting from dimethylamino-acetonitrile, the sequential dialkylation with various allylic halides is conveniently performed at room temperature by using potassium c