Silane, [(2,5-dibromo-1,4-phenylene)di-2,1-ethynediyl]bis[trimethyl-

Base Information

• Chemical Name: Silane, [(2,5-dibromo-1,4-phenylene)di-2,1-ethynediyl]bis[trimethyl-
• CAS No.: 478190-79-3
• Molecular Formula: C16H20Br2Si2
• Molecular Weight: 428.314
• Mol file: 478190-79-3.mol

Synonyms:

Chemical Property of Silane, [(2,5-dibromo-1,4-phenylene)di-2,1-ethynediyl]bis[trimethyl-

Chemical Property:

Purity/Quality:

97% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of Silane, [(2,5-dibromo-1,4-phenylene)di-2,1-ethynediyl]bis[trimethyl-

There total 3 articles about Silane, [(2,5-dibromo-1,4-phenylene)di-2,1-ethynediyl]bis[trimethyl- 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: 97.0%

1,4-dibromo-2,5-diiodobenzene (63262-06-6) + trimethylsilylacetylene (1066-54-2) → 1,4-dibromo-2,5-bis-(trimethylsilylethynyl)benzene (478190-79-3)

Guidance literature:

With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; diisopropylamine; In benzene; at 20 ℃; for 1h;

DOI:10.1021/jo051812m

Reference yield: 94.0%

2,5-dibromo-1,4-bis[2-(trimethylsilyl)ethynyl]cyclohexa-2,5-diene-1,4-diol → 1,4-dibromo-2,5-bis-(trimethylsilylethynyl)benzene (478190-79-3)

Guidance literature:

With tin(II) chloride dihdyrate; In acetonitrile; at 20 ℃; for 11h; Inert atmosphere;

DOI:10.1039/c4nj00011k

Reference yield:

1.4-dibromobenzene (106-37-6) → 1,4-dibromo-2,5-bis-(trimethylsilylethynyl)benzene (478190-79-3)

Guidance literature:

Multi-step reaction with 2 steps

1: iodine; sulfuric acid / 24 h / 130 °C

2: copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride / toluene / 20 h / 20 °C / Inert atmosphere

With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; sulfuric acid; iodine; In toluene;

DOI:10.1002/anie.201206964

upstream raw materials:

1,4-dibromo-2,5-diiodobenzene

trimethylsilylacetylene

1.4-dibromobenzene

Downstream raw materials:

2,5-bis[(triisopropylsilyl)ethynyl]-1,4-bis[(trimethylsilyl)ethynyl]benzene

2,5-bis(dihexylsilyl)-1,4-bis(trimethylsilylethynyl)benzene

1,4-bis(ethoxydimethylsilyl)-2,5-bis[(trimethylsilyl)ethynyl]benzene

1,4-bis(dimesitylboryl)-2,5-bis(trimethylsilylethynyl)benzene