dihydroindeno-2',1':2,3-fluorene

Base Information

• Chemical Name: dihydroindeno-2',1':2,3-fluorene
• CAS No.: 525-18-8
• Molecular Formula: C₂₀H₁₄
• Molecular Weight: 254.331
• Mol file: 525-18-8.mol

Synonyms:dihydroindeno-2',1':2,3-fluorene;ellagene;10,12-Dihydroindeno[2,1-b]fluorene;cis-Fluoracene

Chemical Property of dihydroindeno-2',1':2,3-fluorene

Chemical Property:

• PSA: 0.00000
• LogP: 4.82900

Purity/Quality:

98%min ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of dihydroindeno-2',1':2,3-fluorene

There total 20 articles about dihydroindeno-2',1':2,3-fluorene 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: 91.0%

1,5-dimethyl-2,4-bis(2-chlorophenyl)benzene (1263048-16-3) → 10,12-dihydroindeno<2,1-b>fluorene (525-18-8)

Guidance literature:

With N,N′-bis(2,6-diisopropylphenyl)imidazol-2-ylidene hydrochloride; palladium diacetate; potassium carbonate; In 1-methyl-pyrrolidin-2-one; at 170 ℃; for 2h; Inert atmosphere; Sealed tube;

DOI:10.1002/adsc.201000651

Reference yield: 85.2%

indeno[2,1-a]fluorene-11,12-dione (112865-17-5) → 10,12-dihydroindeno<2,1-b>fluorene (525-18-8)

Guidance literature:

With hydrazine hydrate; potassium hydroxide; In diethylene glycol; at 180 ℃; for 24h;

Reference yield: 57.0%

1,3-dibromobenzene (108-36-1) + diphenyl acetylene (501-65-5) → 10,12-dihydroindeno<2,1-b>fluorene (525-18-8)

Guidance literature:

1,3-dibromobenzene; diphenyl acetylene; With 1,8-diazabicyclo[5.4.0]undec-7-ene; cesium pivalate; 1,2-bis-(diphenylphosphino)ethane; palladium dichloride; In 1,4-dioxane; at 130 ℃; for 24h; Sealed tube; Inert atmosphere;

With 18-crown-6 ether; potassium tert-butylate; hydrazine hydrate; potassium hydroxide; In 1,4-dioxane; at 110 ℃; for 12h; regioselective reaction; Inert atmosphere; Sealed tube;

DOI:10.1021/acs.joc.5b02111

upstream raw materials:

12H-indeno[2,1-b]fluoren-10-one

indeno[2,1-a]fluorene-11,12-dione

11-hydroxy-indeno[2,1-b]fluorene-10,12-dione

4',6'-Dimethyl-m-terphenyl

Downstream raw materials:

11-(3,5-di-tert-butylphenyl)-1,1,3,3-tetraethyl-1,3-dihydroindeno[2,1-b]fluorene-5-carbaldehyde

5-(3,5-di-tert-butylphenyl)-11-(4-diphenylaminostyryl)-1,1,3,3-tetraethylindeno[2,1-b]fluorene