(E)-2-(3-cyano-4-(2-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

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Chemical Name:(E)-2-(3-cyano-4-(2-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile
CAS No.:1429622-97-8
Molecular Formula:C₃₆H₂₃N₃O₂S₂
Molecular Weight:593.73
Hs Code.:

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

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

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

There total 3 articles about (E)-2-(3-cyano-4-(2-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)vinyl)-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: 58.0%

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

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

: 1429622-97-8
(E)-2-(3-cyano-4-(2-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Guidance literature:: With triethylamine; In chloroform; for 24h; Inert atmosphere; Reflux; Sealed tube;
DOI:10.1016/j.tet.2013.03.027

Reference yield:

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

: 1429622-97-8
(E)-2-(3-cyano-4-(2-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Guidance literature:: Multi-step reaction with 2 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: triethylamine / chloroform / 24 h / Inert atmosphere; Reflux; Sealed tube

With n-butyllithium; triethylamine; In tetrahydrofuran; hexane; chloroform; 1.1: |Horner-Wadsworth-Emmons Olefination / 1.2: |Horner-Wadsworth-Emmons Olefination / 2.1: |Knoevenagel Condensation;
DOI:10.1016/j.tet.2013.03.027

Reference yield:

: 129806-51-5
2,6-diphenyl-(4H-pyran-4ylidene)-diphenylphosphine oxide

: 1429622-97-8
(E)-2-(3-cyano-4-(2-(5-(2,6-diphenyl-4H-pyran-4-ylidenemethyl)thieno[3,2-b]thiophen-2-yl)vinyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile

Guidance literature:: Multi-step reaction with 2 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: triethylamine / chloroform / 24 h / Inert atmosphere; Reflux; Sealed tube

With n-butyllithium; triethylamine; In tetrahydrofuran; hexane; chloroform; 1.1: |Horner-Wadsworth-Emmons Olefination / 1.2: |Horner-Wadsworth-Emmons Olefination / 2.1: |Knoevenagel Condensation;
DOI:10.1016/j.tet.2013.03.027