2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene

Base Information

• Chemical Name: 2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene
• CAS No.: 1226782-13-3
• Molecular Formula: C26H36Br2O2S2
• Molecular Weight: 604.511
• Hs Code.: 2934999090
• Mol file: 1226782-13-3.mol

Synonyms:2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene;2Br-BDT-OEH;2,6-dibroMo-4,8-di(2-ethylhexyloxy)-benzo[1,2-b:4,5-b']dithiophene

Chemical Property of 2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene

Chemical Property:

• Boiling Point: 624.0±50.0 °C(Predicted)
• PSA: 74.94000
• Density: 1.346
• LogP: 10.83140
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C

Purity/Quality:

97% ^*data from raw suppliers

2,6-Dibromo-4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b'']dithiophene ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 2,6-Dibromo-4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b'']dithiophene is a solution-processed small molecule used in highly efficient organic solar cells.

Technology Process of 2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene

There total 3 articles about 2,6-Dibromo-4,8-bis[(2-ethylhexyl)oxy]-benzo[1,2-b:4,5-b']dithiophene 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: 90.0%

4,8-di(2-ethylhexyloxy)benzo[1,2-b:4,5-b']dithiophene (1160823-77-7) → 2,6-dibromo-4,8-bis((2-ethylhexyl)oxy)-benzo[1,2-b:4,5-b′]dithiophene (1226782-13-3)

Guidance literature:

With bromine; In dichloromethane; at 20 ℃; for 12h;

DOI:10.1002/pola.23952

Reference yield:

4,8-dihydrobenzo[1,2-b:4,5-b']dithiophene-4,8-dione (32281-36-0) → 2,6-dibromo-4,8-bis((2-ethylhexyl)oxy)-benzo[1,2-b:4,5-b′]dithiophene (1226782-13-3)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium hydroxide; zinc / water / 1 h / 100 °C

1.2: 6 h

2.1: bromine / dichloromethane / 5 h / Cooling with ice

With bromine; sodium hydroxide; zinc; In dichloromethane; water;

Reference yield:

3-bromomethylheptane (18908-66-2) → 2,6-dibromo-4,8-bis((2-ethylhexyl)oxy)-benzo[1,2-b:4,5-b′]dithiophene (1226782-13-3)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium hydroxide; zinc / water / 1 h / 100 °C

1.2: 6 h

2.1: bromine / dichloromethane / 5 h / Cooling with ice

With bromine; sodium hydroxide; zinc; In dichloromethane; water;

upstream raw materials:

4,8-di(2-ethylhexyloxy)benzo[1,2-b:4,5-b']dithiophene

4,8-dihydrobenzo[1,2-b:4,5-b']dithiophene-4,8-dione

3-bromomethylheptane

Downstream raw materials:

2,6-bis(trimethyltin)-4,8-di(2-ethylhexyloxy)benzo[1,2-b:4,5-b']dithiophene