[(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester

Base Information

• Chemical Name: [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester
• CAS No.: 137201-85-5
• Molecular Formula: C₁₃H₁₃ClN₄O₃
• Molecular Weight: 308.724

Synonyms:[(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester

Chemical Property of [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester

Chemical Property:

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Technology Process of [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester

There total 3 articles about [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic 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: 65.0%

2-[(4-Chloro-phenyl)-hydrazono]-3-oxo-pentanedioic acid diethyl ester (121583-01-5) → [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester (137201-85-5)

Guidance literature:

With hydrazine; In acetic acid; at 50 ℃; 24 - 72 h;

DOI:10.1002/ardp.2503240912

Reference yield:

p-chlorobenzenediazonium chloride (2028-74-2) → [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester (137201-85-5)

Guidance literature:

Multi-step reaction with 2 steps

1: NaOAc / ethanol / 1 h / 0 °C

2: 65 percent / H₂NNH₂ / acetic acid / 50 °C / 24 - 72 h

With sodium acetate; hydrazine; In ethanol; acetic acid;

DOI:10.1002/ardp.2503240912

Reference yield:

diethyl 1,3-acetonedicarboxylate (105-50-0) → [(4-Chloro-phenyl)-hydrazono]-(5-hydroxy-1H-pyrazol-3-yl)-acetic acid ethyl ester (137201-85-5)

Guidance literature:

Multi-step reaction with 2 steps

1: NaOAc / ethanol / 1 h / 0 °C

2: 65 percent / H₂NNH₂ / acetic acid / 50 °C / 24 - 72 h

With sodium acetate; hydrazine; In ethanol; acetic acid;

DOI:10.1002/ardp.2503240912

upstream raw materials:

2-[(4-Chloro-phenyl)-hydrazono]-3-oxo-pentanedioic acid diethyl ester

p-chlorobenzenediazonium chloride

diethyl 1,3-acetonedicarboxylate

Downstream raw materials:

5-(4-Chloro-phenyl)-3-hydroxy-4,5-dihydro-2H-pyrazolo[3,4-d]pyridazine-7-carboxylic acid ethyl ester

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