55682-74-1

Basic information

• Product Name: 2,2,7,7-Tetramethyl-3-octen-5-yne
• Synonyms: 2,2,7,7-Tetramethyl-3-octen-5-yne
• CAS NO: 55682-74-1
• Molecular Formula: C₁₂H₂₀
• Molecular Weight: 164.29
• Mol File: 55682-74-1.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,2,7,7-Tetramethyl-3-octen-5-yne(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,7,7-Tetramethyl-3-octen-5-yne(55682-74-1)
• EPA Substance Registry System: 2,2,7,7-Tetramethyl-3-octen-5-yne(55682-74-1)

Safety Data

• Hazardous Substances Data: 55682-74-1(Hazardous Substances Data)

Upstream product

• 917-92-0 3,3-Dimethylbut-1-yne 
• 592-41-6 1-hexene 
• 1610010-33-7 N-benzyl-4,4-dimethylpent-2-yn-1-amine 

Downstream Products

• 143555-08-2 RuCl(CO)((CH₃)3CCHCHCCHC(CH₃)3)(P(C₆H₅)3)2 

Relevant articles and documents

Lanthanide-Catalyzed Reversible Alkynyl Exchange by Carbon–Carbon Single-Bond Cleavage Assisted by a Secondary Amino Group

Lanthanide-catalyzed alkynyl exchange through C?C single-bond cleavage assisted by a secondary amino group is reported. A lanthanide amido complex is proposed as a key intermediate, which undergoes unprecedented reversible β-alkynyl elimination followed by alkynyl exchange and imine reinsertion. The in situ homo- and cross-dimerization of the liberated alkyne can serve as an additional driving force to shift the metathesis equilibrium to completion. This reaction is formally complementary to conventional alkyne metathesis and allows the selective transformation of internal propargylamines into those bearing different substituents on the alkyne terminus in moderate to excellent yields under operationally simple reaction conditions.

NbCl3-catalyzed [2+2+2] intermolecular cycloaddition of alkynes and alkenes to 1,3-cyclohexadiene derivatives

NbCl3(DME)-catalyzed [2+2+2] intermolecular cycloaddition of alkynes and alkenes was successfully achieved to give 1,4,5-trisubstituted-1,3- cyclohexadiene derivatives in good yields. The Royal Society of Chemistry 2009.