4,6-Dibromodibenzofuran

Base Information

• Chemical Name: 4,6-Dibromodibenzofuran
• CAS No.: 201138-91-2
• Molecular Formula: C12H6Br2O
• Molecular Weight: 325.987
• Hs Code.: 2932990090
• Mol file: 201138-91-2.mol

Synonyms:4,6-Dibromodibenzofuran

Chemical Property of 4,6-Dibromodibenzofuran

Chemical Property:

• Melting Point: 147.0 to 151.0 °C
• Boiling Point: 396.049 °C at 760 mmHg
• Flash Point: 193.324 °C
• PSA: 13.14000
• Density: 1.886 g/cm³
• LogP: 5.11100
• Storage Temp.: 2-8°C

Purity/Quality:

98% ^*data from raw suppliers

4,6-Dibromodibenzofuran ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4,6-Dibromodibenzofuran

There total 3 articles about 4,6-Dibromodibenzofuran 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: 92.0%

3,3’-dibromo-2,2’-difluoro-1,1’-biphenyl → 4,6-dibromodibenzo-[b,d]furan (201138-91-2)

Guidance literature:

With N,N,N,N,N,N-hexamethylphosphoric triamide; potassium tert-butylate; at 120 ℃; for 3h; Microwave irradiation;

DOI:10.1002/anie.202007427

Reference yield: 16.6%

2-hydroxybromobenzene (95-56-7) → dibenzofuran (132-64-9,214827-48-2) + 4-bromodibenzofuran (89827-45-2) + dioxin (262-12-4) + 4,6-dibromodibenzo-[b,d]furan (201138-91-2)

Guidance literature:

With oxygen; at 650 ℃; for 0.000555556h; under 760 Torr; Further Variations:; Temperatures; Product distribution;

DOI:10.1021/es048461y

Reference yield:

dibenzofuran (132-64-9,214827-48-2) → 4,6-dibromodibenzo-[b,d]furan (201138-91-2)

Guidance literature:

With N,N,N,N,-tetramethylethylenediamine; bromine; sec.-butyllithium; Yield given. Multistep reaction; 1.) Et₂O, cyclohexane, from -78 deg C to 25 deg C, 20 h, 2.) Et₂O, cyclohexane, pentane, from -78 deg C to 25 deg C, 18 h;

upstream raw materials:

dibenzofuran

2-hydroxybromobenzene

Downstream raw materials:

C₄₄H₄₄N₂OP₂

Refernces

• 1、 Feofanov, Mikhail,Akhmetov, Vladimir,Takayama, Ryo,Amsharov, Konstantin. "Catalyst-Free Synthesis of O-Heteroacenes by Ladderization of Fluorinated Oligophenylenes". supporting information. p. 5199 - 5203. Retrieved 2021/02/21.
• 2、 Schwartz, Elaine Benaksas,Knobler, Carolyn B.,Cram, Donald J.. "Six new saddle-shaped hosts based on fused dibenzofuran units". . p. 10775 - 10784. Retrieved 2007/10/02.