2499-64-1

Basic information

• Product Name: Benzene, 1-ethenyl-4-ethynyl- (9CI)
• Synonyms: Benzene, 1-ethenyl-4-ethynyl- (9CI)
• CAS NO: 2499-64-1
• Molecular Formula: C₁₀H₈
• Molecular Weight: 128.17052
• Mol File: 2499-64-1.mol
• Article Data: 13

Chemical Properties

• Melting Point: 350 °C
• Boiling Point: 74 °C(Press: 10 Torr)
• Appearance: /
• Density: 0.94±0.1 g/cm3(Predicted)
• CAS DataBase Reference: Benzene, 1-ethenyl-4-ethynyl- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-ethenyl-4-ethynyl- (9CI)(2499-64-1)
• EPA Substance Registry System: Benzene, 1-ethenyl-4-ethynyl- (9CI)(2499-64-1)

Safety Data

• Hazardous Substances Data: 2499-64-1(Hazardous Substances Data)

Upstream product

• 63697-96-1 4-Ethynylbenzaldehyde 
• 1122-91-4 4-bromo-benzaldehyde 
• 45966-73-2 2-(4-vinylphenyl)ethan-1-ol 
• 766-96-1 4-bromo-1-ethynylbenzene 
• 7486-35-3 tri-n-butyl(vinyl)tin 
• 103-63-9 1-phenyl-2-bromoethane 
• 53085-77-1 4-(1-hydroxyethyl)phenethyl bromide 
• 2499-63-0 4-(2-bromoethyl)styrene 
• 40422-73-9 1-[4-(2-bromoethyl)phenyl]ethanone 
• 2039-82-9 1-bromo-4-ethenyl-benzene 
• 77123-57-0 4-[(trimethylsilyl)ethynyl]bezaldehyde 
• 135005-24-2 [(4-ethenylphenyl)ethynyl]trimethylsilane 
• 90841-83-1 4-<2-Brom-aethyl>-styrol-dibromid 

Downstream Products

• 915380-20-0 Ethoxy-diisopropyl-[(E)-2-(4-vinyl-phenyl)-vinyl]-silane 
• 3365-10-4 1-(phenylethynyl)-4-vinylbenzene 

Relevant articles and documents

Site-Selective Csp3-Csp/Csp3-Csp2Cross-Coupling Reactions Using Frustrated Lewis Pairs

The donor-acceptor ability of frustrated Lewis pairs (FLPs) has led to widespread applications in organic synthesis. Single electron transfer from a donor Lewis base to an acceptor Lewis acid can generate a frustrated radical pair (FRP) depending on the s

Phosphonium Phenolate Zwitterion vs Phosphonium Ylide: Synthesis, Characterization and Reactivity Study of a Trimethylphosphonium Phenolate Zwitterion

4-Methoxy-3-(trimethylphosphonio)phenolate was obtained from a regioselective addition of PMe3 to p-quinone monoacetal. This compound undergoes hydrogen isotope exchange with D2O or CD3CN, and is capable of catalyzing H/D exchange of CD3CN with substrates bearing weakly acidic hydrogens. It exhibits similar reactivity to phosphorus ylides for olefinations of aldehydes. A possible tautomerization between the phosphonium phenolate zwitterion and phosphonium ylide is proposed for the first time to rationalize the unique reactivity.

Method for synthesizing alkyne through catalytic asymmetric cross coupling (by machine translation)

The invention belongs to the field of, asymmetric synthesis, and discloses a method for catalyzing asymmetric cross- coupling to synthesize: an alkyne, and the L method comprises, the following steps, of A: preparing B a cuprous, salt and C a: ligand; preparing a catalyst; adding a base; reacting the compound with the compound with the compound; and reacting the compound with the compound. Of these, one of them, X is selected from the group consisting of, R halogens. 1 Optionally substituted heteroarylsulfonylcyanamide groups selected from the, group consisting, of optionally substituted, phenyl groups In-flight vehicle, R6 Trialkyl silyl groups or alkyl radicals, R2 Cycloalkyl radicals optionally substituted with an, optionally substituted alkyl, (CH radical2 )n R4 Multi,layer chain, n＝0-10,R saw blade4 A group selected, from, the group consisting of phenyl, alkenyl, aralkynyls, noonyloxy,and, noonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulfonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylsulphonylphenyl disiloxy-radicals. R3 A ligand, selected from hydrogen or any of the functional groups, is selected from the group consisting of, hydrogen and any L other functional group. The method, R disclosed by the, A invention has the, advantages of good catalytic, R ’ effect, wide application range. and high catalytic efficiency, and the, method disclosed by the, invention has the. advantages of good catalytic effect, wide application range and high catalytic efficiency. (by machine translation)