1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene

Base Information

• Chemical Name: 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene
• CAS No.: 731857-21-9
• Molecular Formula: C₅₂H₆₆Si₄
• Molecular Weight: 803.438

Synonyms:1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene

Chemical Property of 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene

Chemical Property:

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Technology Process of 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene

There total 3 articles about 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene 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: 70.0%

trimethylsilylacetylene (1066-54-2) + 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-dibromobenzene (731857-17-3) → 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene (731857-21-9)

Guidance literature:

With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine; at 120 ℃; for 18h;

DOI:10.1021/ol049225v

Reference yield:

1,4-dibromo-2,5-diiodobenzene (63262-06-6) → 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene (731857-21-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 72 percent / Pd(PPh₃)2Cl₂; CuI; Et₃N / piperidine / 36 h

2: 70 percent / Pd(PPh₃)2Cl₂; CuI; Et₃N / 18 h / 120 °C

With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine; piperidine; 1: Sonogashira coupling / 2: Sonogashira coupling;

DOI:10.1021/ol049225v

Reference yield:

1-(dimethylthexylsilyl)ethynyl-2-ethynylbenzene (144192-95-0) → 1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-bis(trimethylsilylethynyl)benzene (731857-21-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 72 percent / Pd(PPh₃)2Cl₂; CuI; Et₃N / piperidine / 36 h

2: 70 percent / Pd(PPh₃)2Cl₂; CuI; Et₃N / 18 h / 120 °C

With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine; piperidine; 1: Sonogashira coupling / 2: Sonogashira coupling;

DOI:10.1021/ol049225v

upstream raw materials:

trimethylsilylacetylene

1,4-bis{2-[(dimethylthexylsilyl)ethynyl]phenyl}ethynyl-2,5-dibromobenzene

1,4-dibromo-2,5-diiodobenzene

1-(dimethylthexylsilyl)ethynyl-2-ethynylbenzene

Downstream raw materials:

1,4-bis(2-ethynylphenyl)ethynyl-2,5-diethynylbenzene

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