1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one

Base Information

• Chemical Name: 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one
• CAS No.: 131273-92-2
• Molecular Formula: C₂₉H₁₆Br₂O
• Molecular Weight: 540.253

Synonyms:1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one

Chemical Property of 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one

Chemical Property:

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Technology Process of 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one

There total 3 articles about 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one 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: 77.0%

1,3-bis(4-bromophenyl)propan-2-one (54523-47-6) + 9,10-phenanthrenequinone (84-11-7) → 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one (131273-92-2)

Guidance literature:

With potassium hydroxide; In methanol; for 2h; Reflux;

DOI:10.1021/acs.macromol.1c01043

Reference yield:

Ethyl 4-bromophenylacetate (14062-25-0) → 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one (131273-92-2)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium hydride / toluene / 70 °C

1.2: 24 h / 100 °C

2.1: potassium hydroxide / methanol / 2 h / Reflux

With sodium hydride; potassium hydroxide; In methanol; toluene; 2.1: |Knoevenagel Condensation;

DOI:10.1021/acs.macromol.1c01043

Reference yield:

(4-bromo-phenyl)-acetic acid methyl ester (41841-16-1) → 1,3-bis(4-bromophenyl)cyclopentaphenanthren-2-one (131273-92-2)

Guidance literature:

Multi-step reaction with 2 steps

1: 1) LDA, 2) 6N HCl / 1a) ether, 0 deg C, 15 min, 1b) up to r.t., 20 h, 2) glac.HOAc, reflux, 5 h

2: 18 percent / KOH / ethanol

With hydrogenchloride; potassium hydroxide; lithium diisopropyl amide; In ethanol;

DOI:10.1021/jo00002a037

upstream raw materials:

1,3-bis(4-bromophenyl)propan-2-one

9,10-phenanthrenequinone

(4-bromo-phenyl)-acetic acid methyl ester

Ethyl 4-bromophenylacetate

Downstream raw materials:

9,14-bis(4-bromophenyl)benzotriphenylene

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