1-Butene, 2-bromo-

Base Information

• Chemical Name: 1-Butene, 2-bromo-
• CAS No.: 23074-36-4
• Molecular Formula: C4H7Br
• Molecular Weight: 135.004
• Hs Code.: 2903399090
• European Community (EC) Number: 245-412-3
• DSSTox Substance ID: DTXSID7066853
• Nikkaji Number: J318.397A
• Wikidata: Q81993425
• Mol file: 23074-36-4.mol

Synonyms:2-Bromo-1-butene;2-Bromobut-1-ene;1-Butene, 2-bromo-;23074-36-4;EINECS 245-412-3;2-bromobutene;2-bromo-l-butene;2-bromo-but-1-ene;1-Butene,2-bromo-;SCHEMBL478030;DTXSID7066853;MFCD00039178;AKOS006229187;AS-57070;FT-0638290

Chemical Property of 1-Butene, 2-bromo-

Chemical Property:

• Vapor Pressure: 70.1mmHg at 25°C
• Melting Point: -133.4°C
• Refractive Index: 1.455
• Boiling Point: 88 °C at 760 mmHg
• Flash Point: 11.6 °C
• PSA: 0.00000
• Density: 1.315 g/cm³
• LogP: 2.30500
• Water Solubility.: Soluble in ethanol, acetone and benzene. Not miscible in water.
• XLogP3: 2.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 1
• Exact Mass: 133.97311
• Heavy Atom Count: 5
• Complexity: 38.9

Purity/Quality:

99%, ^*data from raw suppliers

2-Bromo-1-butene, 97% ^*data from reagent suppliers

Safty Information:

• Statements: 10
• Safety Statements: 3/7-9-16-29-33

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCC(=C)Br
• Uses: 2-Bromo-1-butene is used to produce 2-Ethyl-acrylic acid. It acts as a photolytic precursor for 1-buten-2-yl.

Technology Process of 1-Butene, 2-bromo-

There total 10 articles about 1-Butene, 2-bromo- which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 62.0%

but-1-yne (107-00-6) → 2-bromobutene (23074-36-4)

Guidance literature:

With tetraethylammonium bromide; hydrogen bromide; In dichloromethane; for 2h; Ambient temperature;

DOI:10.1016/0040-4020(96)00730-2

Reference yield:

1,2-dibromobutane (533-98-2,130232-89-2,130232-90-5) → but-1-yne (107-00-6) + 2-bromobutene (23074-36-4)

Guidance literature:

Reference yield:

→ 2-bromobutene (23074-36-4)

Guidance literature:

With potassium carbonate;

upstream raw materials:

1,2-dibromobutane

potassium acetate

methylmagnesium bromide

2-bromoallyl bromide

Downstream raw materials:

2-(2-methylphenyl)but-1-ene

4-(but-1-en-2-yl)anisole

2-methylene-1,1-diphenylbutan-1-ol

1,2,2-tribromo-butane

Refernces

• 1、 -. "Stereocontrolled synthesis of serricornin". . . Retrieved 2008/06/13.
• 2、 Ando, Tetsu,Ohno, Ryuta,Ikemoto, Kazuhisa,Yamamoto, Masanobu. "Structure-Activity Relationships of Cyclopropene Compounds, Inhibitors of Pheromone Biosynthesis in Bombyx mori". . p. 3350 - 3354. Retrieved 2007/10/03.