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

Base Information

Chemical Name:5-(4-fluorophenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid
CAS No.:1415647-37-8
Molecular Formula:C₁₃H₇FN₂O₃S
Molecular Weight:290.275
Hs Code.:

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

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

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

There total 7 articles about 5-(4-fluorophenyl)-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: 61.0%

: 1415647-22-1
methyl 5-(4-fluorophenyl)-4-oxo-4,5-dihyhydrothieno[2,3-d]pyridazine-7-carboxylate

: 1415647-37-8
5-(4-fluorophenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

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:

: 1415647-06-1
2-(carboxycarbonyl)-3-thienoic acid

: 1415647-37-8
5-(4-fluorophenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

Guidance literature:: Multi-step reaction with 5 steps

1: hydrogenchloride / dichloromethane / 15 h / 40 °C

2: tetrahydrofuran; methanol / 3 h / 60 °C

3: thionyl chloride / benzene / 50 °C

4: benzene / 50 °C

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

With hydrogenchloride; thionyl chloride; potassium hydroxide; In tetrahydrofuran; methanol; dichloromethane; chloroform; water; benzene;
DOI:10.1016/j.tet.2012.10.010

Reference yield:

: C₁₄H₁₁FN₂O₄S

: 1415647-37-8
5-(4-fluorophenyl)-4-oxo-4,5-dihydrothieno[2,3-d]pyridazine-7-carboxylic acid

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