1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid

Base Information

• Chemical Name: 1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid
• CAS No.: 123647-45-0
• Molecular Formula: C₂₀H₁₃NO₄
• Molecular Weight: 331.328

Synonyms:

Chemical Property of 1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid

Chemical Property:

Purity/Quality:

Safty Information:

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Technology Process of 1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid

There total 4 articles about 1-phenyl-2-methylbenzindole-4,9-dione-3-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: 50.0%

(Z)-2-(3-Chloro-1,4-dioxo-1,4-dihydro-naphthalen-2-yl)-3-phenylamino-but-2-enoic acid ethyl ester (123647-42-7) → 1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid (123647-45-0)

Guidance literature:

With sodium hydroxide; at 170 - 175 ℃; for 0.0833333h;

DOI:10.1007/BF00472619

Reference yield:

2,3-Dichloro-1,4-naphthoquinone (117-80-6) → 1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid (123647-45-0)

Guidance literature:

Multi-step reaction with 2 steps

1: 31 percent / CH₃COONa / ethanol / 2 h / Heating

2: 50 percent / NaOH / 0.08 h / 170 - 175 °C

With sodium hydroxide; sodium acetate; In ethanol;

DOI:10.1007/BF00472619

Reference yield:

3-phenylaminobut-2-enoic acid ethyl ester (6287-35-0,17469-23-7,66558-23-4) → 1-phenyl-2-methylbenzindole-4,9-dione-3-carboxylic acid (123647-45-0)

Guidance literature:

Multi-step reaction with 2 steps

1: 31 percent / CH₃COONa / ethanol / 2 h / Heating

2: 50 percent / NaOH / 0.08 h / 170 - 175 °C

With sodium hydroxide; sodium acetate; In ethanol;

DOI:10.1007/BF00472619

upstream raw materials:

(Z)-2-(3-Chloro-1,4-dioxo-1,4-dihydro-naphthalen-2-yl)-3-phenylamino-but-2-enoic acid ethyl ester

2,3-Dichloro-1,4-naphthoquinone

3-phenylaminobut-2-enoic acid ethyl ester

Downstream raw materials:

1-phenyl-2-methylbenzindole-4,9-dione

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