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

Base Information

Chemical Name:5-(4-Bromo-phenyl)-6-imino-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol
CAS No.:126837-10-3
Molecular Formula:C₁₁H₈BrN₅O
Molecular Weight:306.121
Hs Code.:

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

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

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

There total 3 articles about 5-(4-Bromo-phenyl)-6-imino-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol 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: 50.0%

: 126837-05-6
1-(4-Bromo-phenyl)-6-imino-4-oxo-1,4,5,6-tetrahydro-pyridazine-3-carboxylic acid ethyl ester

: 126837-10-3
5-(4-Bromo-phenyl)-6-imino-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol

Guidance literature:: With hydrazine hydrate; hydrogenchloride; In ethanol; for 35h; Heating;

Reference yield:

: 78663-90-8
ethyl γ-bromo-(4-bromophenyl)azoacetoacetate

: 126837-10-3
5-(4-Bromo-phenyl)-6-imino-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol

Guidance literature:: Multi-step reaction with 2 steps

1: dimethylformamide / 15 h / Heating

2: 50 percent / hydrazine hydrate / HCl / ethanol / 35 h / Heating

With hydrazine hydrate; hydrogenchloride; In ethanol; N,N-dimethyl-formamide;

Reference yield:

: 126837-04-5
2-[(4-Bromo-phenyl)-hydrazono]-4-cyano-3-oxo-butyric acid ethyl ester

: 126837-10-3
5-(4-Bromo-phenyl)-6-imino-5,6-dihydro-1H-pyrazolo[4,3-c]pyridazin-3-ol

Guidance literature:: Multi-step reaction with 2 steps

1: 55 percent / HOAc / 6 h / Heating

2: 50 percent / hydrazine hydrate / HCl / ethanol / 35 h / Heating

With hydrazine hydrate; acetic acid; hydrogenchloride; In ethanol;