ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate

Base Information

Chemical Name:ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate
CAS No.:145484-19-1
Molecular Formula:C₁₅H₁₂BrN₃O₃
Molecular Weight:362.183
Hs Code.:

Synonyms:ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate

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Technology Process of ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate

There total 2 articles about ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate 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: 76.0%

: 105-56-6
ethyl 2-cyanoacetate

: 18794-98-4
ethyl 2-(2-(4-bromophenyl)hydrazono)-3-oxobutanoate

: 145484-19-1
ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate

Guidance literature:: With 4-amino-n-butyric acid; at 160 ℃; for 2.5h; Neat (no solvent);
DOI:10.1021/jm100138f

Reference yield:

: 106-40-1
4-bromo-aniline

: 145484-19-1
ethyl 1-(4-bromophenyl)-5-cyano-4-methyl-6-oxo-1,6-dihydrodihydropyridazine-3-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: hydrogenchloride; sodium nitrite / ethanol; water / 0.33 h / 0 °C

1.2: 2 h / 0 °C

2.1: 4-amino-n-butyric acid / 2.5 h / 160 °C

With hydrogenchloride; sodium nitrite; 4-amino-n-butyric acid; In ethanol; water; 2.1: Knoevenagel Condensation;