1,8-Dibromo-4,5-dimethoxypyrene

Base Information

• Chemical Name: 1,8-Dibromo-4,5-dimethoxypyrene
• CAS No.: 1286170-85-1
• Molecular Formula: C18H12Br2O2
• Molecular Weight: 420.09
• Hs Code.: 2909309090
• Mol file: 1286170-85-1.mol

Synonyms:1,8-DibroMo-4,5-diMethoxypyrene

Chemical Property of 1,8-Dibromo-4,5-dimethoxypyrene

Chemical Property:

• PSA: 18.46000
• LogP: 6.12620
• Storage Temp.: 2-8°C

Purity/Quality:

98%+ ^*data from raw suppliers

1,8-Dibromo-4,5-dimethoxypyrene 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,8-Dibromo-4,5-dimethoxypyrene

There total 4 articles about 1,8-Dibromo-4,5-dimethoxypyrene 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: 95.0%

4,5-dimethoxypyrene (1286170-82-8) → 1,8-dibromo-4,5-dimethoxypyrene (1286170-85-1)

Guidance literature:

With bromine; In dichloromethane; at 20 ℃; for 0.166667h; Inert atmosphere;

DOI:10.1021/ol200485x

Reference yield:

pyrene-4,5-dione (6217-22-7) → 1,8-dibromo-4,5-dimethoxypyrene (1286170-85-1)

Guidance literature:

Multi-step reaction with 3 steps

1: sodium dithionite; tetrabutylammomium bromide / tetrahydrofuran; water / 0.08 h

2: sodium hydroxide / water / 1 h / 20 °C

3: bromine / dichloromethane / 0.17 h / 20 °C / Inert atmosphere

With sodium dithionite; tetrabutylammomium bromide; bromine; sodium hydroxide; In tetrahydrofuran; dichloromethane; water;

DOI:10.1021/ol200485x

Reference yield:

pyrene (129-00-0) → 1,8-dibromo-4,5-dimethoxypyrene (1286170-85-1)

Guidance literature:

Multi-step reaction with 4 steps

1: sodium periodate; ruthenium trichloride / tetrahydrofuran; dichloromethane / 2.5 h / 20 °C / Inert atmosphere

2: sodium dithionite; tetrabutylammomium bromide / tetrahydrofuran; water / 0.08 h

3: sodium hydroxide / water / 1 h / 20 °C

4: bromine / dichloromethane / 0.17 h / 20 °C / Inert atmosphere

With ruthenium trichloride; sodium periodate; sodium dithionite; tetrabutylammomium bromide; bromine; sodium hydroxide; In tetrahydrofuran; dichloromethane; water;

DOI:10.1021/ol200485x

upstream raw materials:

4,5-dimethoxypyrene

pyrene

4,5-dihydroxypyrene

pyrene-4,5-dione

Refernces

• 1、 Maeda, Hajime,Geshi, Makoto,Hirose, Kenji,Furuyama, Taniyuki,Segi, Masahito. "Synthesis, fluorescence properties, and conformational analysis of ether-linked (1,8)pyrenophanes". . . Retrieved 2019.
• 2、 Walsh, Joshua C.,Hogan, David T.,Williams, Kerry-Lynn M.,Brake, Simon D.,Venkataramana, Gandikota,Misener, Tara A.,Wallace, Brandon J.,Johnson, Richard P.,Thompson, David W.,Zhao, Yuming,Wagner, Brian D.,Bodwell, Graham J.. "Synthesis of Oligo(1,8-pyrenylene)s: A Series of Functional Molecular Liquids". . p. 754 - 765. Retrieved 2019.