2,2-Dibromobutane

Base Information

• Chemical Name: 2,2-Dibromobutane
• CAS No.: 50341-35-0
• Molecular Formula: C4H8Br2
• Molecular Weight: 215.916
• Hs Code.: 2903399090
• Mol file: 50341-35-0.mol

Synonyms:2,2-dibromo-butane;Butane,2,2-dibromo;2,2-Dibrom-butan;Butane, 2,2-dibromo-;

Chemical Property of 2,2-Dibromobutane

Chemical Property:

• Vapor Pressure: 6.26mmHg at 25°C
• Melting Point: -25.98°C (estimate)
• Refractive Index: 1.4990
• Boiling Point: 145°Cat760mmHg
• Flash Point: 26.1°C
• PSA: 0.00000
• Density: 1.784g/cm³
• LogP: 2.90240

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,2-Dibromobutane

There total 20 articles about 2,2-Dibromobutane 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: 45.7%

s-butyl bromide (78-76-2,5787-31-5) → 2,3-dibromobutane (5408-86-6) + meso-2,3-dibromo-butane (5780-13-2) + 2,2-dibromobutane (50341-35-0) + 1,2,2-tribromo-1-methylpropane (62127-47-3)

Guidance literature:

With bromine; at 30 ℃; Irradiation;

Reference yield: 34.6%

s-butyl bromide (78-76-2,5787-31-5) → (E/Z)-crotyl bromide (4784-77-4,29576-14-5,39616-19-8) + 2,3-dibromobutane (5408-86-6) + (E)-1,4-dibromobutene (821-06-7) + 2,2-dibromobutane (50341-35-0)

Guidance literature:

With hydrogen bromide; bromine; at 100 ℃; for 0.25h; under 80 Torr; Further byproducts given; Heating; Irradiation;

Reference yield: 24.0%

s-butyl bromide (78-76-2,5787-31-5) → 2,3-dibromobutane (5408-86-6) + (E)-1,4-dibromobutene (821-06-7) + 2,2-dibromobutane (50341-35-0) + 1,2,3,4-tetrabromobutane (1529-68-6)

Guidance literature:

With bromine; at 100 ℃; for 0.25h; under 80 Torr; Further byproducts given; Heating; Irradiation;

upstream raw materials:

dimethylacetylene

s-butyl bromide

hydrogen bromide

acetic acid

Downstream raw materials:

butanone

Refernces

• 1、 Tanner, Dennis D.,Ruo, Tomoki C. S.,Kosugi, Yoshio,Potter, Alan. "A reinvestigation of the vapor phase bromination of 2-bromobutane". . p. 2310 - 2316. Retrieved 2007/10/02.