Ethanedione, bis(3-bromophenyl)-

Base Information

• Chemical Name: Ethanedione, bis(3-bromophenyl)-
• CAS No.: 91960-97-3
• Molecular Formula: C14H8Br2O2
• Molecular Weight: 368.024
• Mol file: 91960-97-3.mol

Synonyms:3,3-Dibrombenzil;1,2-Bis-(3-bromo-phenyl)-ethane-1,2-dione;3,3'-Dibrombenzil;3,3'-dibromobenzil;

Chemical Property of Ethanedione, bis(3-bromophenyl)-

Chemical Property:

• Melting Point: 118 - 120 °C
• PSA: 34.14000
• LogP: 4.27720

Purity/Quality:

98.5% ^*data from raw suppliers

1,2-BIS-(3-BROMO-PHENYL)-ETHANE-1,2-DIONE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Ethanedione, bis(3-bromophenyl)-

There total 4 articles about Ethanedione, bis(3-bromophenyl)- 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: 94.0%

1,2-bis(3-bromophenyl)-2-hydroxyethanone (164403-02-5) → 1,2-bis(3-bromophenyl)ethane-1,2-dione (91960-97-3)

Guidance literature:

With ammonium nitrate; copper(II) acetate monohydrate; In water; acetic acid; for 1.5h; Reflux;

DOI:10.1021/ol3022287 DOI:10.1021/ol3022287

Reference yield: 86.0%

m-bromobenzoic aldehyde (3132-99-8) → 1,2-bis(3-bromophenyl)ethane-1,2-dione (91960-97-3)

Guidance literature:

m-bromobenzoic aldehyde; With sodium hydroxide; 1,3-dioctyl-1H-benzo[d]imidazol-3-ium bromide; In water; for 0.5h; Reflux;

With acetic acid; In water;

With iron(III) chloride hexahydrate; In water; for 7.5h; pH=5 - 6; Reflux;

DOI:10.1080/00397910802398264

Reference yield: 81.0%

m-bromobenzoic aldehyde (3132-99-8) → 1,2-bis(3-bromophenyl)ethane-1,2-dione (91960-97-3) + 1,2-bis(3-bromophenyl)-2-hydroxyethanone (164403-02-5)

Guidance literature:

With 1,8-diazabicyclo[5.4.0]undec-7-ene; In N,N-dimethyl-formamide; at 40 ℃; for 24h; Inert atmosphere;

DOI:10.1039/c4ra05073h

upstream raw materials:

m-bromobenzoic aldehyde

1,2-di-(3-bromophenyl)-1,2-ethanediol

1,2-bis(3-bromophenyl)-2-hydroxyethanone

Downstream raw materials:

2,5-Bis-(4-bromo-phenyl)-3,4-bis-(3-bromo-phenyl)-cyclopenta-2,4-dienone

2-(3-bromobenzoyl)-4-(3-bromophenyl)-4-oxobutanenitrile

C₂₀H₁₂Br₂N₂

C₁₉H₁₁Br₂N₃