4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

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Chemical Name:4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile
CAS No.:373596-57-7
Molecular Formula:C₈₈H₁₁₀N₂O₄Si₂
Molecular Weight:1316.02
Hs Code.:

4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

Synonyms:4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

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Chemical Property of 4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

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Technology Process of 4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

There total 6 articles about 4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile 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: 84.0%

: 142761-86-2
(3-(dibromomethylene)penta-1,4-diyne-1,5-diyl)bis(triisopropylsilane)

: 373596-56-6
4-(4-{[11-(4-Ethynylphenoxy)undecyl]oxy}phenyl)benzonitrile

: 373596-57-7
4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

Guidance literature:: With (i-Pr)2N; tetrabutylammomium bromide; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; In tetrahydrofuran; at 20 ℃; for 2h;
DOI:10.1002/1521-3765(20010803)7:15<3263::AID-CHEM3263>3.0.CO;2-3

Reference yield:

: 540-38-5
p-Iodophenol

: 373596-57-7
4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

Guidance literature:: Multi-step reaction with 4 steps

1: 79 percent / NaH / dimethylformamide / 24 h / 20 °C

2: 96 percent / Bu₄NBr; (i-Pr)2N / PdCl₂(PPh₃)2; CuI / tetrahydrofuran / 2 h / 20 °C

3: 93 percent / aq. Bu₄NF / tetrahydrofuran / 1 h

4: 84 percent / Bu₄NBr; (i-Pr)2N / PdCl₂(PPh₃)2; CuI / tetrahydrofuran / 2 h / 20 °C

With (i-Pr)2N; tetrabutyl ammonium fluoride; tetrabutylammomium bromide; sodium hydride; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; In tetrahydrofuran; N,N-dimethyl-formamide; 2: Sonogashira cross-coupling reaction;
DOI:10.1002/1521-3765(20010803)7:15<3263::AID-CHEM3263>3.0.CO;2-3

Reference yield:

: 83577-78-0
4'-(11-hydroxyundecyloxy)-4-cyanobiphenyl

: 373596-57-7
4,4'-{1-[2-(Triisopropylsilyl)ethynyl]-3-[(triisopropylsilyl)prop-2-ynylidene]methylenebis[ethyne-1,2-diyl-4-phenyleneoxyundecamethylenoxy(4-phenylene)]}dibenzonitrile

Guidance literature:: Multi-step reaction with 5 steps

1: 92 percent / CBr₄; PPh₃ / CH₂Cl₂ / 2 h / 20 °C

2: 79 percent / NaH / dimethylformamide / 24 h / 20 °C

3: 96 percent / Bu₄NBr; (i-Pr)2N / PdCl₂(PPh₃)2; CuI / tetrahydrofuran / 2 h / 20 °C

4: 93 percent / aq. Bu₄NF / tetrahydrofuran / 1 h

5: 84 percent / Bu₄NBr; (i-Pr)2N / PdCl₂(PPh₃)2; CuI / tetrahydrofuran / 2 h / 20 °C

With carbon tetrabromide; (i-Pr)2N; tetrabutyl ammonium fluoride; tetrabutylammomium bromide; sodium hydride; triphenylphosphine; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; 3: Sonogashira cross-coupling reaction;
DOI:10.1002/1521-3765(20010803)7:15<3263::AID-CHEM3263>3.0.CO;2-3