3-Methyl-3-butenyl bromide

Base Information

• Chemical Name: 3-Methyl-3-butenyl bromide
• CAS No.: 20038-12-4
• Molecular Formula: C5H9Br
• Molecular Weight: 149.03
• Hs Code.: 2903399090
• Mol file: 20038-12-4.mol

Synonyms:4-Bromo-2-methyl-1-butene;4-bromo-2-methyl-butene;1-bromo-3-methylbut-3-ene;1-Butene,4-bromo-2-methyl;4-BROMO-2-METHYL-BUT-1-ENE;2-methyl-4-bromo-1-butene;1-Bromo-3-methyl-3-butene;

Chemical Property of 3-Methyl-3-butenyl bromide

Chemical Property:

• Melting Point: -106.7°C (estimate)
• Refractive Index: 1.4600
• Boiling Point: 125oC
• Flash Point: 26oC
• PSA: 0.00000
• Density: 1.25
• LogP: 2.34750
• Storage Temp.: 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

4-Bromo-2-methyl-1-butene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3-Methyl-3-butenyl bromide

There total 6 articles about 3-Methyl-3-butenyl bromide 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: 100.0%

4-mesyloxy-2-methylbutene (80352-66-5) → 4-bromo-2-methylbut-1-ene (20038-12-4)

Guidance literature:

With lithium bromide; In N,N-dimethyl-formamide; for 2h; Heating;

DOI:10.1021/jm049861z

Reference yield: 76.0%

isopentenyl tosylate (781-03-3) → 4-bromo-2-methylbut-1-ene (20038-12-4)

Guidance literature:

With lithium bromide; In N,N-dimethyl-formamide; at 20 ℃; for 24h;

DOI:10.1135/cccc20000741

Reference yield: 75.0%

2-methyl-1-buten-4-ol (763-32-6) → 4-bromo-2-methylbut-1-ene (20038-12-4)

Guidance literature:

With N-Bromosuccinimide; triphenylphosphine; In dichloromethane; for 3h; Ambient temperature;

DOI:10.1021/jo961911n

upstream raw materials:

2-methyl-1-buten-4-ol

4-mesyloxy-2-methylbutene

isopentenyl tosylate

C₈H₁₃Br

Downstream raw materials:

2-Methyl-1-buten-triphenylphosphoniumbromid

4-[(E/Z)-1,5-dimethylhex-5-enylidene]-1-methylcyclohex-1-ene

2-methyl-hept-1-en-6-yne

4,4-dimethylchromane