5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

Base Information

Chemical Name:5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid
CAS No.:121603-78-9
Molecular Formula:C₁₁H₈N₂O₅
Molecular Weight:248.195
Hs Code.:

Synonyms:5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

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Chemical Property of 5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

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Technology Process of 5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

There total 4 articles about 5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-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: 84.0%

: 121582-61-4
4-hydroxy-6-oxo-1-(4-methoxyphenyl)-1,6-dihydropyridazin-3-carboxylic acid methyl ester

: 121603-78-9
5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

Guidance literature:: With hydrogen bromide; In acetic acid; for 3h; Heating;

Reference yield:

: 1830-54-2
3-oxopentanedioic acid dimethyl ester

: 121603-78-9
5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

Guidance literature:: Multi-step reaction with 3 steps

1: 1.) conc. HCl, NaNO₂, 2.) sodium acetate / 1.) water, below 5 deg C, 2.) ethanol, water, 30 min

2: 82 percent / 1,2-dichloro-benzene / 0.75 h / Heating

3: 84 percent / hydrobromic acid / acetic acid / 3 h / Heating

With hydrogenchloride; hydrogen bromide; sodium acetate; sodium nitrite; In acetic acid; 1,2-dichloro-benzene;

Reference yield:

: 121582-52-3
dimethyl 1-(4-methoxyphenyl)hydrazono-2-oxopropane-1,3-dicarboxylate

: 121603-78-9
5-hydroxy-2-(4-hydroxyphenyl)-3-oxo-2,3-dihydropyridazine-6-carboxylic acid

Guidance literature:: Multi-step reaction with 2 steps

1: 82 percent / 1,2-dichloro-benzene / 0.75 h / Heating

2: 84 percent / hydrobromic acid / acetic acid / 3 h / Heating

With hydrogen bromide; In acetic acid; 1,2-dichloro-benzene;