7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine

Base Information

• Chemical Name: 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine
• CAS No.: 1228173-50-9
• Molecular Formula: C₂₄H₁₈N₂S
• Molecular Weight: 366.486
• Mol file: 1228173-50-9.mol

Synonyms:7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine

Chemical Property of 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine

There total 3 articles about 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine 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: 64.0%

phenyl benzyl ketone (451-40-1) + 3-amino-4,6-dimethylthieno[2,3-b]pyridine-2-carbaldehyde (1228173-29-2) → 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine (1228173-50-9)

Guidance literature:

With sodium hydroxide; In ethanol; at 20 ℃; for 6h;

DOI:10.3184/030823409X12532880131016

Reference yield:

4,6-Dimethyl-2-thioxo-1,2-dihydro-pyridine-3-carbonitrile (54585-47-6) → 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine (1228173-50-9)

Guidance literature:

Multi-step reaction with 3 steps

1: sodium hydroxide / ethanol / 10 h / 20 °C

2: sodium ethanolate / ethanol / 5 h / 20 °C

3: sodium hydroxide / ethanol / 6 h / 20 °C

With sodium ethanolate; sodium hydroxide; In ethanol; 3: Friedlaender synthesis;

DOI:10.3184/030823409X12532880131016

Reference yield:

2-(3-cyano-4,6-dimethylpyridin-2-yl)acetaldehyde (482661-87-0) → 7,9-dimethyl-2,3-diphenylthieno[2,3-b:4,5-b']dipyridine (1228173-50-9)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium ethanolate / ethanol / 5 h / 20 °C

2: sodium hydroxide / ethanol / 6 h / 20 °C

With sodium ethanolate; sodium hydroxide; In ethanol; 2: Friedlaender synthesis;

DOI:10.3184/030823409X12532880131016

upstream raw materials:

phenyl benzyl ketone

3-amino-4,6-dimethylthieno[2,3-b]pyridine-2-carbaldehyde

2-(3-cyano-4,6-dimethylpyridin-2-yl)acetaldehyde

4,6-Dimethyl-2-thioxo-1,2-dihydro-pyridine-3-carbonitrile