1,1-Bis-(4-bromophenyl)-2,2-dichloroethylene

Base Information

• Chemical Name: 1,1-Bis-(4-bromophenyl)-2,2-dichloroethylene
• CAS No.: 21655-73-2
• Molecular Formula: C14H8Br2Cl2
• Molecular Weight: 406.932
• Hs Code.: 2903999090
• Mol file: 21655-73-2.mol

Synonyms:Ethylene, 1,1-bis(p-bromo-phenyl)-2,2-dichloro-;1,1'-(2,2-Dichloroethene-1,1-diyl)bis(4-bromobenzene);

Chemical Property of 1,1-Bis-(4-bromophenyl)-2,2-dichloroethylene

Chemical Property:

• Vapor Pressure: 1.11E-06mmHg at 25°C
• Refractive Index: 1.646
• Boiling Point: 414 °C at 760 mmHg
• Flash Point: 236 °C
• PSA: 0.00000
• Density: 1.729 g/cm³
• LogP: 6.40610

Purity/Quality:

99% ^*data from raw suppliers

DIBROMO-DDE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,1-Bis-(4-bromophenyl)-2,2-dichloroethylene

There total 6 articles about 1,1-Bis-(4-bromophenyl)-2,2-dichloroethylene 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: 98.0%

2,2-bis-(4-bromo-phenyl)-1,1,1-trichloro-ethane (2990-17-2) → 1,1-dichloro-2,2-bis(4'-bromophenyl)ethylene (21655-73-2)

Guidance literature:

With potassium hydroxide; In ethanol; for 10h; Heating;

Reference yield:

2,2-bis-(4-bromo-phenyl)-1,1,1-trichloro-ethane (2990-17-2) + iron(III) chloride (7705-08-0) → hydrogenchloride (7647-01-0,15364-23-5) + 1,1-dichloro-2,2-bis(4'-bromophenyl)ethylene (21655-73-2)

Guidance literature:

at 115 - 120 ℃;

DOI:10.1021/ja01205a506

Reference yield:

bromobenzene (108-86-1,52753-63-6) → 1,1-dichloro-2,2-bis(4'-bromophenyl)ethylene (21655-73-2)

Guidance literature:

Multi-step reaction with 2 steps

1: SO₃/H₂SO₄

2: NaSPh / ethanol / 65 °C

With sulfuric acid; sulfur trioxide; sodium thiophenolate; In ethanol;

upstream raw materials:

2,2-bis-(4-bromo-phenyl)-1,1,1-trichloro-ethane

1,1-dichloro-2,2-diphenylethene

bromine

iron(III) chloride

Downstream raw materials:

1,1,1,2-tetrachloro-2,2-bis-(4-chloro-phenyl)-ethane

cis-1,2-dichloro-1,2-bis(4'-bromophenyl)ethylene

trans-1,2-bis(isoamylsulphonyl)-1,2-bis(4'-bromophenyl)ethylene

trans-1,2-bis(n-amylsulphonyl)-1,2-bis(4'-bromophenyl)ethylene

Refernces

• 1、 Peeran, S. G.,Venkateswarlu, R.,Reddy, G. Hanumantha. "Synthesis of trans-1,2-bis(alkylthio)-1,2-bis(4'-bromophenyl)ethylenes and their corresponding bis-sulphones". . p. 223 - 227. Retrieved 2007/10/02.