2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

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Chemical Name:2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile
CAS No.:1429622-99-0
Molecular Formula:C₃₈H₂₅N₃O₂S₂
Molecular Weight:619.767
Hs Code.:

2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Synonyms:2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

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Chemical Property of 2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

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Technology Process of 2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

There total 4 articles about 2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile 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: 14.0%

: 1429623-07-3
(E)-3-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)acrylaldehyde

: 171082-32-9
2-dicyanomethylidene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran

: 1429622-99-0
2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Guidance literature:: In ethanol; for 0.133333h; Inert atmosphere; Sealed tube; Microwave irradiation;
DOI:10.1016/j.tet.2013.03.027

Reference yield:

: 1429623-05-1
5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-carbaldehyde

: 1429622-99-0
2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Guidance literature:: Multi-step reaction with 2 steps

1.1: sodium ethanolate / N,N-dimethyl-formamide; ethanol / 22 h / 90 °C / Inert atmosphere; Sealed tube

1.2: 1.5 h / 20 °C / Inert atmosphere; Sealed tube

2.1: ethanol / 0.13 h / Inert atmosphere; Sealed tube; Microwave irradiation

With sodium ethanolate; In ethanol; N,N-dimethyl-formamide; 2.1: |Knoevenagel Condensation;
DOI:10.1016/j.tet.2013.03.027

Reference yield:

: 37882-75-0
2,5-Thieno<3,2-b>thiophendicarbaldehyd

: 1429622-99-0
2-(3-cyano-4-((1E,3E)-4-(5-((2,6-diphenyl-4H-pyran-4-ylidene)methyl)thieno[3,2-b]thiophen-2-yl)buta-1,3-dienyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Guidance literature:: Multi-step reaction with 3 steps

1.1: n-butyllithium / hexane; tetrahydrofuran / 0.75 h / -30 °C / Inert atmosphere; Sealed tube

1.2: 1 h / Inert atmosphere; Sealed tube

2.1: sodium ethanolate / N,N-dimethyl-formamide; ethanol / 22 h / 90 °C / Inert atmosphere; Sealed tube

2.2: 1.5 h / 20 °C / Inert atmosphere; Sealed tube

3.1: ethanol / 0.13 h / Inert atmosphere; Sealed tube; Microwave irradiation

With n-butyllithium; sodium ethanolate; In tetrahydrofuran; ethanol; hexane; N,N-dimethyl-formamide; 1.1: |Horner-Wadsworth-Emmons Olefination / 1.2: |Horner-Wadsworth-Emmons Olefination / 3.1: |Knoevenagel Condensation;
DOI:10.1016/j.tet.2013.03.027