6,6-bis(5,6-dihydro-4H-cyclopenta[b]thiophen-6-ylidene)-2-carbaldehyde

Base Information

• Chemical Name: 6,6-bis(5,6-dihydro-4H-cyclopenta[b]thiophen-6-ylidene)-2-carbaldehyde
• CAS No.: 302906-76-9
• Molecular Formula: C15H12OS2
• Molecular Weight: 272.38500
• Mol file: 302906-76-9.mol

Synonyms:(E)-4,5,4',5'-Tetrahydro-[6,6']bi[cyclopenta[b]thiophenylidene]-2-carbaldehyde;

Chemical Property of 6,6-bis(5,6-dihydro-4H-cyclopenta[b]thiophen-6-ylidene)-2-carbaldehyde

Chemical Property:

• Melting Point: 184 - 186 °C
• PSA: 73.55000
• LogP: 4.42530

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

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Technology Process of 6,6-bis(5,6-dihydro-4H-cyclopenta[b]thiophen-6-ylidene)-2-carbaldehyde

There total 1 articles about 6,6-bis(5,6-dihydro-4H-cyclopenta[b]thiophen-6-ylidene)-2-carbaldehyde 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: 83.0%

N,N-dimethyl-formamide (68-12-2,33513-42-7) + (E)-4,5,4',5'-Tetrahydro-[6,6']bi[cyclopenta[b]thiophenylidene] (302906-75-8) → (E)-2-formyl-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene) (302906-76-9)

Guidance literature:

With trichlorophosphate; In 1,2-dichloro-ethane; for 18h; Heating;

DOI:10.1021/jo010713f

Reference yield: 97.0%

(E)-2-formyl-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene) (302906-76-9) + (4-dihexylaminobenzyl)triphenylphosphonium bromide → (E)-2-[(4-N,N-dihexylaminobenzylidene)methyl]-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene)

Guidance literature:

With potassium tert-butylate; In tetrahydrofuran; acetonitrile; at 20 ℃; for 4h;

DOI:10.1021/jo010713f

Reference yield:

4-(N,N-dimethylamino)benzyltriphenylphosphonium iodide (34904-03-5) + (E)-2-formyl-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene) (302906-76-9) → (E)-2-[(Z)-(4-N,N-dimethylaminobenzylidene)methyl]-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene) + (E)-2-[(E)-(4-N,N-dimethylaminobenzylidene)methyl]-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene) (302906-79-2)

Guidance literature:

With potassium tert-butylate; In tetrahydrofuran; acetonitrile;

DOI:10.1039/b001700k

upstream raw materials:

N,N-dimethyl-formamide

(E)-4,5,4',5'-Tetrahydro-[6,6']bi[cyclopenta[b]thiophenylidene]

Downstream raw materials:

(E)-2-[(E)-(4-N,N-dimethylaminobenzylidene)methyl]-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene)

Dihexyl-{4-[(E)-(E)-2-(4,5,4',5'-tetrahydro-[6,6']bi[cyclopenta[b]thiophenylidene]-2-yl)-vinyl]-phenyl}-amine

(E)-2-formyl-2'-2-[(E)-(4-N,N-dihexylaminobenzylidene)methyl]-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene)

(E)-2-formyl-2'-[(E)-(4-N,N-dimethylaminobenzylidene)methyl]-6,6'-bis(4,5-dihydro-6H-cyclopenta[b]thienylidene)

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