2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide

Base Information

• Chemical Name: 2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide
• CAS No.: 1269841-02-2
• Molecular Formula: C₁₈H₁₅N₅OS
• Molecular Weight: 349.416
• Mol file: 1269841-02-2.mol

Synonyms:2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide

Chemical Property of 2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide

There total 2 articles about 2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide 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: 65.0%

2-cyano-N-(3-cyano-4,5,6,7-tetrahydrobenzo [b]thiophen-2-yl)acetamide (73227-84-6) + benzene diazonium chloride (100-34-5) → 2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide (1269841-02-2)

Guidance literature:

With sodium hydroxide; In ethanol; at 0 - 5 ℃;

DOI:10.3390/molecules16010052

Reference yield:

3-cyano-2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene (4651-91-6) → 2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide (1269841-02-2)

Guidance literature:

Multi-step reaction with 2 steps

1: N,N-dimethyl-formamide / 5 h / Reflux

2: sodium hydroxide / ethanol / 0 - 5 °C

With sodium hydroxide; In ethanol; N,N-dimethyl-formamide;

DOI:10.3390/molecules16010052

Reference yield: 84.0%

2-cyano-2-(2-phenylhydrazono)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide (1269841-02-2) + malononitrile (109-77-3) → 5-(2-phenyldiazenyl)-2,4-diamino-1-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-1,6-dihydro-6-oxopyridine-3-carbonitrile (1269841-03-3)

Guidance literature:

With triethylamine; In ethanol; N,N-dimethyl-formamide; for 5h; Reflux;

DOI:10.3390/molecules16010052

upstream raw materials:

3-cyano-2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene

2-cyano-N-(3-cyano-4,5,6,7-tetrahydrobenzo [b]thiophen-2-yl)acetamide

benzene diazonium chloride

Downstream raw materials:

ethyl 5-(2-phenyldiazenyl)-2,4-diamino-1-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-1,6-dihydro-6-oxopyridine-3-carboxylate

5-(2-phenyldiazenyl)-2,4-diamino-1-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-1,6-dihydro-6-oxopyridine-3-carbonitrile