1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

Base Information

Chemical Name:1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene
CAS No.:1049822-93-6
Molecular Formula:C₄₄H₃₄O₄S₄
Molecular Weight:755.016
Hs Code.:

Synonyms:1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

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Chemical Property of 1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

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Technology Process of 1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

There total 5 articles about 1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)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: 94.0%

: 1049822-92-5
1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-triisopropylsilylethynyl-2-thienyl)benzene

: 1049822-93-6
1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

Guidance literature:: With tetrabutyl ammonium fluoride; In tetrahydrofuran; methanol; at 20 ℃; for 2h;
DOI:10.1021/ol801828n

Reference yield:

: 1049822-82-3
1,4-bis(3-methyl-2-thienyl)-2,5-bis(5-triisopropylsilylethynyl-2-thienyl)benzene

: 1049822-93-6
1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

Guidance literature:: Multi-step reaction with 3 steps

1.1: n-butyllithium; N,N,N,N,-tetramethylethylenediamine / tetrahydrofuran; hexane / 0.5 h / 0 °C / Inert atmosphere

1.2: 0 - 20 °C / Inert atmosphere

2.1: tetrakis(triphenylphosphine) palladium⁽⁰⁾; potassium carbonate / tetrahydrofuran; water / Inert atmosphere; Reflux

3.1: tetrabutyl ammonium fluoride / tetrahydrofuran; methanol / 20 °C / Inert atmosphere

With tetrakis(triphenylphosphine) palladium⁽⁰⁾; n-butyllithium; N,N,N,N,-tetramethylethylenediamine; tetrabutyl ammonium fluoride; potassium carbonate; In tetrahydrofuran; methanol; hexane; water;
DOI:10.1055/s-0030-1260086

Reference yield:

: 1049822-88-9
1,4-bis(5-iodo-3-methyl-2-thenyl)-2,5-bis{5-[(triisopropylsilyl)ethynyl]-2-thienyl}benzene

: 1049822-93-6
1,4-bis[5-(1,2-dimethoxy-4-phenyl)-3-methyl-2-thienyl]-2,5-bis(5-ethynyl-2-thienyl)benzene

Guidance literature:: Multi-step reaction with 2 steps

1: tetrakis(triphenylphosphine) palladium⁽⁰⁾; potassium carbonate / tetrahydrofuran; water / Inert atmosphere; Reflux

2: tetrabutyl ammonium fluoride / tetrahydrofuran; methanol / 20 °C / Inert atmosphere

With tetrakis(triphenylphosphine) palladium⁽⁰⁾; tetrabutyl ammonium fluoride; potassium carbonate; In tetrahydrofuran; methanol; water;
DOI:10.1055/s-0030-1260086