C₂₈H₂₀Br₂

Base Information

• Chemical Name: C₂₈H₂₀Br₂
• CAS No.: 1351272-44-0
• Molecular Formula: C₂₈H₂₀Br₂
• Molecular Weight: 516.275
• Mol file: 1351272-44-0.mol

Synonyms:C₂₈H₂₀Br₂

Chemical Property of C₂₈H₂₀Br₂

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of C₂₈H₂₀Br₂

There total 4 articles about C₂₈H₂₀Br₂ 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: 45.0%

carbon tetrabromide (558-13-4) + [1-(4-carbaldehydephenyl)-1,2,2-triphenyl]ethylene (1289218-74-1) → C28H20Br2 (1351272-44-0)

Guidance literature:

With triphenylphosphine; In dichloromethane; at -10 - 20 ℃; for 4h;

DOI:10.1016/j.tetlet.2011.11.012

Reference yield:

(4-bromophenyl)(phenyl)methanone (90-90-4) → C28H20Br2 (1351272-44-0)

Guidance literature:

Multi-step reaction with 3 steps

1.1: 0 °C / Acidic conditions

2.1: n-butyllithium / benzene / 2 h / 60 °C

2.2: 6 h / 20 °C

3.1: triphenylphosphine / dichloromethane / 4 h / -10 - 20 °C

With n-butyllithium; triphenylphosphine; In dichloromethane; benzene; 3.1: Corey-Fuchs reaction;

DOI:10.1016/j.tetlet.2011.11.012

Reference yield:

1-(4-bromophenyl)triphenylethene (34699-28-0) → C28H20Br2 (1351272-44-0)

Guidance literature:

Multi-step reaction with 2 steps

1.1: n-butyllithium / benzene / 2 h / 60 °C

1.2: 6 h / 20 °C

2.1: triphenylphosphine / dichloromethane / 4 h / -10 - 20 °C

With n-butyllithium; triphenylphosphine; In dichloromethane; benzene; 2.1: Corey-Fuchs reaction;

DOI:10.1016/j.tetlet.2011.11.012

upstream raw materials:

carbon tetrabromide

[1-(4-carbaldehydephenyl)-1,2,2-triphenyl]ethylene

(4-bromophenyl)(phenyl)methanone

1-(4-bromophenyl)triphenylethene

Downstream raw materials:

(2-(4-ethynylphenyl) ethane-1,1,2-triyl)tribenzene

Refernces