62676-19-1

Basic information

• Product Name: Benzene, 1,1'-(3-methylene-1-propyne-1,3-diyl)bis-
• CAS NO: 62676-19-1
• Molecular Formula: C16H12
• Molecular Weight: 204.271
• Mol File: 62676-19-1.mol
• Article Data: 89

Chemical Properties

• CAS DataBase Reference: Benzene, 1,1'-(3-methylene-1-propyne-1,3-diyl)bis-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1'-(3-methylene-1-propyne-1,3-diyl)bis-(62676-19-1)
• EPA Substance Registry System: Benzene, 1,1'-(3-methylene-1-propyne-1,3-diyl)bis-(62676-19-1)

Safety Data

• Hazardous Substances Data: 62676-19-1(Hazardous Substances Data)

Upstream product

• 14161-76-3 1,1-Dichlor-3-methyl-2,3-diphenyl-cyclopropan 
• 111-34-2 -butyl vinyl ether 
• 28143-79-5 1-phenyl vinyl triflate 
• 50523-12-1 1-phenyl-eth-1-en-1-yl diphenyl phosphate 
• 5075-59-2 diethyl(phenylethynyl)aluminum 
• 7299-48-1 1-deuterio-hex-1-yne 
• 536-74-3 phenylacetylene 
• 931-48-6 2-cyclohexylacetylene 
• 13361-64-3 trimethyl(propargyl)silane 
• 5582-62-7 1-trimethylsilyloxy-2-propyne 
• 1066-54-2 trimethylsilylacetylene 
• 693-02-7 hex-1-yne 
• 67-56-1 methanol 
• 588-73-8 (Z)-β-bromostyrene 

Downstream Products

• 1143526-21-9 (1Z)-1,3-diphenyl-2-phenylethynyl-1,3-butadiene 
• 1143526-58-2 (1E)-1,3-diphenyl-2-(4-anisylethynyl)-1,3-butadiene 
• 1431560-00-7 diethyl 2-phenyl-2-(phenylethynyl)cyclopropane-1,1-dicarboxylate 
• 4982-34-7 1,4-diphenyl-1,3-cyclopentadiene 
• 7338-94-5 1,3-diphenyl-2-propynone 

Relevant articles and documents

Chemo- and regioselective dimerization of terminal alkynes promoted by methylaluminoxane

(figure presented) Methylalumoxane (MAO) was found to be an active catalytic precursor for the chemo- and regioselective dimerization of a wide range of aryl-and alkyl-substituted terminal alkynes yielding the corresponding geminal dimers A. For an olefin

Alkynyldichlorogalliums are Unstable in Hydrocarbon Solvents Dimerization of Alkynyldichlorogalliums via Carbogallation

Alkynyldichlorogalliums dimerize in hydrocarbon solvents via carbogallation giving 1,1-dimetallo-1-buten-3-yne derivatives.

Synthesis of 6-Adamantyl-2-pyridone and Reversible Hydrogen Activation by the Corresponding Bis(perfluorophenyl)borane Complex

We herein describe the two-step synthesis of 6-Adamantyl-2-pyridone from 1-Acetyladamantane. The borane complex derived from 6-Adamantyl-2-pyridone and the Piers borane liberates dihydrogen at 60 °C. The reverse reaction, hydrogen activation by the formed pyridonate borane is accomplished under mild conditions. The mechanism of the hydrogen activation is studied by DFT computations.

Variation on the π-Acceptor Ligand within a RhI?N-Heterocyclic Carbene Framework: Divergent Catalytic Outcomes for Phenylacetylene-Methanol Transformations

A series of neutral and cationic rhodium complexes bearing IPr {IPr=1,3-bis-(2,6-diisopropylphenyl)imidazolin-2-carbene} and π-acceptor ligands are reported. Cationic species [Rh(η4-cod)(IPr)(NCCH3)]+ and [Rh(CO)(IPr)(L)2]+ (L=pyridine, CH3CN) were obtained by chlorido abstraction in suitable complexes, whereas the cod-CO derivative [Rh(η4-cod)(IPr)(CO)]+ was formed by the carbonylation of [Rh(η4-cod)(IPr)(NCCH3)]+. Alternatively, neutral derivatives of type RhCl(IPr)(L)2 {L=tBuNC or P(OMe)3} can be accessed from [Rh(μ-Cl)(η2-coe)(IPr)]2. In addition, the mononuclear species Rh(CN)(η4-cod)(IPr) was prepared by cyanide-chlorido anion exchange, which after carbonylation afforded the unusual trinuclear compound [Rh{1κC,2κN-(CN)}(CO)(IPr)]3. Divergent catalytic outcomes in the phenylacetylene-methanol transformations have been observed. Thus, enol ethers, arisen from hydroalkoxylation of the alkyne, were obtained with neutral Rh?CO catalyst precursors whereas dienol ethers were formed with cationic catalysts. Variable amounts of alkyne dimerization, cyclotrimerization or polymerization products were obtained in the absence of a strong π-acceptor ligand on the catalyst.