5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

Base Information

• Chemical Name: 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid
• CAS No.: 1415647-35-6
• Molecular Formula: C₁₄H₁₀N₂O₄S
• Molecular Weight: 302.31
• Mol file: 1415647-35-6.mol

Synonyms:5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

Chemical Property of 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

There total 6 articles about 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid 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: 87.0%

methyl 5-(4-methoxyphenyl)-4-oxo-4,5-dihyhydrothieno[2,3-d]pyridazine-7-carboxylate (1415647-19-6) → 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid (1415647-35-6)

Guidance literature:

With potassium hydroxide; In tetrahydrofuran; methanol; chloroform; water; at 50 ℃; for 1.5h;

DOI:10.1016/j.tet.2012.10.010

Reference yield:

C15H13ClN2O4S → 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid (1415647-35-6)

Guidance literature:

Multi-step reaction with 2 steps

1: benzene / 50 °C

2: potassium hydroxide / tetrahydrofuran; methanol; chloroform; water / 1.5 h / 50 °C

With potassium hydroxide; In tetrahydrofuran; methanol; chloroform; water; benzene;

DOI:10.1016/j.tet.2012.10.010

Reference yield:

C15H14N2O5S → 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid (1415647-35-6)

Guidance literature:

Multi-step reaction with 3 steps

1: thionyl chloride / benzene / 50 °C

2: benzene / 50 °C

3: potassium hydroxide / tetrahydrofuran; methanol; chloroform; water / 1.5 h / 50 °C

With thionyl chloride; potassium hydroxide; In tetrahydrofuran; methanol; chloroform; water; benzene;

DOI:10.1016/j.tet.2012.10.010

upstream raw materials:

2-[methoxy(oxo)acetyl]-3-thienoic acid

3-oxopentanedioic acid dimethyl ester

methyl 5-(4-methoxyphenyl)-4-oxo-4,5-dihyhydrothieno[2,3-d]pyridazine-7-carboxylate

methyl 2-(2-methoxy-2-oxoethyl)-3-thienoate

Downstream raw materials:

5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carbonyl azide

methyl 5-(4-methoxyphenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazin-7-ylcarbamate

7-amino-5-(4-methoxyphenyl)thieno[2,3-d]pyridazin-4(5H)-one