31929-13-2

Basic information

• Product Name: 4-ethynyl-1-methylcyclohexene
• Synonyms: 4-ethynyl-1-methylcyclohexene
• CAS NO: 31929-13-2
• Molecular Weight: 120.194
• Mol File: 31929-13-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-ethynyl-1-methylcyclohexene(CAS DataBase Reference)
• NIST Chemistry Reference: 4-ethynyl-1-methylcyclohexene(31929-13-2)
• EPA Substance Registry System: 4-ethynyl-1-methylcyclohexene(31929-13-2)

Safety Data

• Hazardous Substances Data: 31929-13-2(Hazardous Substances Data)

Upstream product

• 71607-16-4 1-(4-methyl-cyclohex-3-enyl)-ethanone oxime 
• 4342-60-3 4-methylcyclohex-3-enecarboxylic acid 
• 7560-64-7 4-methyl-cyclohex-3-enecarbaldehyde 
• 39155-38-9 (4-methylcyclohex-3-en-1-yl)methanol 
• 162132-39-0 1,1-dibromo-2-(4-methyl-3-cyclohexen-1-yl)ethene 
• 78-94-4 methyl vinyl ketone 
• 78-79-5 isoprene 
• 71606-99-0 C₉H₁₄N₂O₂ 

Downstream Products

• 25532-79-0 (E)‐α‐bisabolene 

Relevant articles and documents

Termite trail attractants: New synthesis of racemic (E)-α-, (Z)-α- and β-bisabolenes

Racemic (E)-α-bisabolene (E)(1) was synthetized starting from 4-methyl-3-cyclohexenecarboxylic acid (3) by a reaction sequence involving the Pd(0)-catalyzed cross-coupling reaction between the (E)-2-methyl-1-alkenyltrimethylstannane 8 and 3-methyl-2-buten-1-yl acetate (9). Three different procedures, in which a common precursor was used as key intermediate, were tested for the synthesis of racemic (Z)-α-bisabolene (Z)(1). The best one, which involved the reaction between bromide 18 and lithium dialkenylcuprate 19, afforded a mixture of (Z)- and (E)-1 in a 93:7 molar ratio, respectively. Finally, racemic β-bisabolene (2) was synthetized by a simple reaction sequence involving the Zr-promoted methylenation of ketone 22 prepared from 3.