6974-12-5

Basic information

• Product Name: TRANS-1,4-DIBROMO-2-BUTENE
• Synonyms: TRANS-1,4-DIBROMOBUT-2-ENE;1,4-DIBROMO-2-BUTENE;1,4-dibromo-2-buten;TL 80;tl80;1,4-dibromobut-2-ene;Cis-1,4-DibromoButene;2-Butene, 1,4-dibromo-
• CAS NO: 6974-12-5
• Molecular Formula: C₄H₆Br₂
• Molecular Weight: 213.9
• EINECS: 212-472-7
• Mol File: 6974-12-5.mol
• Article Data: 6

Chemical Properties

• Melting Point: 48-51 °C(lit.)
• Boiling Point: 205 °C(lit.)
• Flash Point: 113 °C
• Appearance: colorless to slightly brown/
• Density: 1.9393 (estimate)
• Vapor Pressure: 0.405mmHg at 25°C
• Refractive Index: 1.5430 (estimate)
• Storage Temp.: 0-6°C
• CAS DataBase Reference: TRANS-1,4-DIBROMO-2-BUTENE(CAS DataBase Reference)
• NIST Chemistry Reference: TRANS-1,4-DIBROMO-2-BUTENE(6974-12-5)
• EPA Substance Registry System: TRANS-1,4-DIBROMO-2-BUTENE(6974-12-5)

Safety Data

• Hazard Codes: T
• Statements: 25-34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 2923 8/PG 2
• WGK Germany: 2
• RTECS: EM4725000
• F: 8-19
• Hazardous Substances Data: 6974-12-5(Hazardous Substances Data)

Usage

General Description

Trans-1,4-Dibromo-2-butene is a synthetic, organic compound that belongs to the family of bromoalkenes. Its chemical formula is C4H6Br2, indicating that it is composed of carbon, hydrogen, and bromine atoms. The compound is considered to pose potential health hazards as it may be harmful if inhaled, swallowed, or come in contact with the skin. Trans-1,4-Dibromo-2-butene is generally used in the chemical industry, especially in the manufacture of other chemicals, and in laboratory research settings.

InChI:InChI=1/C4H6Br2/c5-3-1-2-4-6/h1-2H,3-4H2/b2-1-

Upstream product

• 497-06-3 3,4-butenediol 
• 64-17-5 ethanol 
• 10463-48-6 3,4-dibromo-1-butene 
• 1147550-11-5 ammonium thiocyanate 
• 139-02-6 sodium phenoxide 
• 106-99-0 buta-1,3-diene 
• 3179-63-3 3-Dimethylamino-1-propanol 
• 71-43-2 benzene 
• 6117-80-2 1,4-butenediol 
• 7726-95-6 bromine 
• 60-29-7 diethyl ether 
• 506-68-3 bromocyane 
• 4559-79-9 1,4-bis(dimethylamino)but-2-ene 
• 821-11-4 1,4-butenediol 

Downstream Products

• 1576-98-3 1,4-diacetoxybut-2-ene 
• 15779-52-9 (E)-1,4-diphenoxybut-2-ene 
• 40734-75-6 1-(4-bromobut-2-enyl)benzene 
• 60838-73-5 N,N'-diphenyl-but-2-enediyldiamine 
• 29422-13-7 2-phenyltetralin 
• 23178-33-8 N-<4-Brom-2-butenyl>-N-benzyl-N.N-dimethylammonium 
• 1112-96-5 (E)/(Z)-(But-2-en-1,4-diyl)bis-tetraethylester 
• 99260-80-7 (2-vinylcyclopropane-1,1-disulfonyl)dibenzene 
• 105379-35-9 C₂₄H₃₂N₂O₂⁽²⁺⁾*2Br^(1-) 
• 88811-64-7 1,1,3,3-Tetraphenyl-2-(triphenylphosphoranyliden)-4-vinyl-1,3-diphosphoniacyclopentan-dibromid 
• 132431-25-5 (2E,4E)-2-(Methyl-phenyl-amino)-6-phenylsulfanyl-hexa-2,4-dienenitrile 
• 132431-25-5 (2E,4E)-2-(N-methylanilino)-6-phenylsulfanylhexa-2,4-dienenitrile 
• 14396-64-6 2,3-dibromomethylethylene oxide 
• 35416-67-2 diethyl 2,7-diethoxycarbonyl-4-octenedioate 

Relevant articles and documents

Fourth subgroup metal complex with rigid annular bridging structure and application of fourth subgroup metal complex

The invention belongs to the technical field of olefin polymerization catalysts, and particularly relates to a fourth subgroup metal complex with a rigid annular bridging structure and an application of the fourth subgroup metal complex. The fourth subgroup metal complex provided by the invention has a structure represented by a formula (A) or a formula (B), X is halogen or alkyl; and M is titanium, zirconium or hafnium. On the basis of a non-metallocene catalyst, a bridging structure in catalyst molecules is improved and upgraded, and a brand-new metal complex with excellent catalytic performance and good high-temperature tolerance is designed; when the fourth subgroup metal complex is used as a main catalyst to catalyze olefin polymerization reaction, under the activation action of a small amount of mixed cocatalyst, the fourth subgroup metal complex can efficiently catalyze the copolymerization reaction of ethylene and alpha-olefin to obtain polyolefin with high molecular weight and high comonomer insertion rate.

Cross-metathesis of vinylsilanes carrying electron-withdrawing substituents with olefins in the presence of the second-generation Grubbs catalyst

The efficient cross-metathesis of vinylsilanes carrying electron-withdrawing substituents with various olefins is described. High yields and selectivities were obtained when styrene, 1-hexene, and selective functional allyl derivatives were used as the ol

Methyltrioxorhenium als Katalysator fuer die Olefin-Metathese

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