1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

Base Information

Chemical Name:1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene
CAS No.:882880-07-1
Molecular Formula:C₂₆H₁₈O₈S₄
Molecular Weight:586.688
Hs Code.:

Synonyms:1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

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Chemical Property of 1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

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Technology Process of 1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

There total 5 articles about 1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]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: 98.0%

: 882880-06-0
1,4-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]-2,5-bis(trimethylsilylethynyl)benzene

: 882880-07-1
1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

Guidance literature:: With potassium carbonate; In tetrahydrofuran; methanol; for 0.75h;
DOI:10.1021/ol060071o

Reference yield:

: 185051-30-3
diethyl 2,5-bis(((trifluoromethyl)sulfonyl)oxy)terephthalate

: 882880-07-1
1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

Guidance literature:: Multi-step reaction with 5 steps

1: 78 percent / CuI; iPr₂NEt / Pd(PPh₃)2Cl₂ / dimethylformamide / 18 h

2: 94 percent / LiAlH₄ / tetrahydrofuran / 1 h / 0 °C

3: 96 percent / Celite; pyridinium chlorochromate / CH₂Cl₂ / 2 h

4: 82 percent / Et₃N / acetonitrile; tetrahydrofuran / 1 h / 20 °C

5: 98 percent / K₂CO₃ / tetrahydrofuran; methanol / 0.75 h

With copper(l) iodide; lithium aluminium tetrahydride; Celite; potassium carbonate; triethylamine; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; bis-triphenylphosphine-palladium(II) chloride; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; acetonitrile; 1: Sonogashira cross-coupling / 4: Wittig reaction;
DOI:10.1021/ol060071o

Reference yield:

: 882880-03-7
2-((triisopropylsilyl)ethynyl)-5-((trimethylsilyl)ethynyl)terephthalaldehyde

: 882880-07-1
1,4-diethynyl-2,5-bis[{4,5-bis(methoxycarbonyl)-1,3-dithiol-2-ylidene}methyl]benzene

Guidance literature:: Multi-step reaction with 2 steps

1: 82 percent / Et₃N / acetonitrile; tetrahydrofuran / 1 h / 20 °C

2: 98 percent / K₂CO₃ / tetrahydrofuran; methanol / 0.75 h

With potassium carbonate; triethylamine; In tetrahydrofuran; methanol; acetonitrile; 1: Wittig reaction;
DOI:10.1021/ol060071o