1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester

Base Information

• Chemical Name: 1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester
• CAS No.: 126837-26-1
• Molecular Formula: C₁₉H₁₇BrN₂O₃
• Molecular Weight: 401.26

Synonyms:1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester

Chemical Property of 1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester

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Technology Process of 1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester

There total 1 articles about 1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester 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: 48.0%

benzaldehyde (100-52-7) + ethyl 2-(2-(4-bromophenyl)hydrazono)-3-oxobutanoate (18794-98-4) → 1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester (126837-26-1)

Guidance literature:

With sodium acetate; In acetic acid; for 20h; Heating;

Reference yield: 64.0%

1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester (126837-26-1) + 1-Phenylbut-1-en-3-one (122-57-6) → 6-(4-Bromo-phenyl)-2-methyl-4,5-diphenyl-5,6-dihydro-4H-pyrano[2,3-d]pyridazine-8-carboxylic acid ethyl ester (126837-32-9)

Guidance literature:

With triethylamine; In ethanol; for 30h; Heating;

Reference yield: 62.0%

1-(4-Bromo-phenyl)-4-oxo-6-phenyl-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester (126837-26-1) → 5-(4-Bromo-phenyl)-6-phenyl-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol (126836-78-0)

Guidance literature:

With hydrazine hydrate; hydrogenchloride; In ethanol; for 30h; Heating;

upstream raw materials:

benzaldehyde

ethyl 2-(2-(4-bromophenyl)hydrazono)-3-oxobutanoate

Downstream raw materials:

2-Amino-6-(4-bromo-phenyl)-4,5-diphenyl-5,6-dihydro-4H-pyrano[2,3-d]pyridazine-3,8-dicarboxylic acid 8-ethyl ester

5-(4-Bromo-phenyl)-6-phenyl-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol

6-(4-Bromo-phenyl)-2-hydroxy-4,5-diphenyl-5,6-dihydro-4H-pyrano[2,3-d]pyridazine-3,8-dicarboxylic acid diethyl ester

6-(4-Bromo-phenyl)-2-methyl-4,5-diphenyl-5,6-dihydro-4H-pyrano[2,3-d]pyridazine-8-carboxylic acid ethyl ester

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