4,8-dibromo-1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone

Base Information

• Chemical Name: 4,8-dibromo-1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone
• CAS No.: 24848-78-0
• Molecular Formula: C10Br2O6
• Molecular Weight: 375.914
• Mol file: 24848-78-0.mol

Synonyms:3,6-Dibromo-1,2:4,5-benzenetetracarboxylic dianhydride;3,6-Dibrompyromellithsaeuredianhydrid;3,6-dibromopyromellitic acid dianhydride;1,4-dibromo-2,3,5,6-benzene tetracarboxylic acid dianhydride;Dianhydrid v. 3,6-Dibrompyromellitsaeure;Dibrom-pyromellithsaeure-dianhydrid;3,6-Dibrom-pyromellitsaeure-dianhydrid;3.6-Dibrom-pyromellithsaeure-1.2,4.5-dianhydrid;4,8-dibromofurano[3,4-f]isobenzofuran-1,3,5,7-tetraone;

Chemical Property of 4,8-dibromo-1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone

Chemical Property:

• Melting Point: 275°C(lit.)
• Boiling Point: 542.3±50.0 °C(Predicted)
• PSA: 94.56000
• Density: 2.538±0.06 g/cm3(Predicted)
• LogP: 1.02040
• Storage Temp.: Inert atmosphere,Room Temperature

Purity/Quality:

97% ^*data from raw suppliers

4,8-Dibromobenzo[1,2-c:4,5-c'']difuran-1,3,5,7-tetraone ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 4,8-Dibromobenzo[1,2-c:4,5-c'']difuran-1,3,5,7-tetraone is used in preparation of thioether quinones with high solubility.

Technology Process of 4,8-dibromo-1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone

There total 6 articles about 4,8-dibromo-1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone 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: 71.0%

3,6-di-bromo-1,2,4,5-benzenetetracarboxylic acid (41819-13-0) → 4,8-dibromobenzo[1,2-c;4,5-c']difuran-1,3,5,7-tetraone (24848-78-0)

Guidance literature:

at 205 ℃; for 24h;

Reference yield:

1,2,4,5-tetramethylbenzene (95-93-2) → 4,8-dibromobenzo[1,2-c;4,5-c']difuran-1,3,5,7-tetraone (24848-78-0)

Guidance literature:

Multi-step reaction with 3 steps

1.1: bromine / tetrachloromethane / 54 °C / Darkness

1.2: Irradiation; Reflux

2.1: sodium vanadate; nitric acid / Reflux

3.1: 205 °C

With sodium vanadate; bromine; nitric acid; In tetrachloromethane;

DOI:10.1021/ma2009063

Reference yield:

1,4-dibromodurene (1646-54-4) → 4,8-dibromobenzo[1,2-c;4,5-c']difuran-1,3,5,7-tetraone (24848-78-0)

Guidance literature:

Multi-step reaction with 2 steps

1: potassium permanganate; pyridine

2: acetic anhydride; acetic acid

With pyridine; potassium permanganate; acetic anhydride; acetic acid;

DOI:10.1071/CH14128

upstream raw materials:

3,6-di-bromo-1,2,4,5-benzenetetracarboxylic acid

1,2,4,5-tetramethylbenzene

1,4-dibromodurene

1,4-dibromo-2,3,5,6-tetrakis(bromomethyl)benzene

Downstream raw materials:

C₆₈H₈₀Br₄N₄O₁₂

N,N'-di-n-butyl-3,6-dibromopyromellitic diimide

C₅₂H₄₈Br₄N₄O₁₂

4,8-dibromo-2,6-bis(2-ethylhexyl)pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone

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