4-bromo-9,9'-Spirobi[9H-fluorene

Base Information

• Chemical Name: 4-bromo-9,9'-Spirobi[9H-fluorene
• CAS No.: 1161009-88-6
• Molecular Formula: C25H15Br
• Molecular Weight: 395.298
• Hs Code.: 2903998090
• Mol file: 1161009-88-6.mol

Synonyms:4-DroMo-9,9'-spirobifluorene

Chemical Property of 4-bromo-9,9'-Spirobi[9H-fluorene

Chemical Property:

• Vapor Pressure: 0-0Pa at 20-50℃
• Melting Point: 150-160 °C(lit.)
• Boiling Point: 517.2±29.0 °C(Predicted)
• PSA: 0.00000
• Density: 1.52±0.1 g/cm3(Predicted)
• LogP: 6.79260
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

98% ^*data from raw suppliers

4-Bromo-9,9''-spirobi[fluorene] ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Description: 4-bromo-9, 9'-Spirobi[9H-fluorene is a kind of fluorene which is a polycyclic aromatic hydrocarbon. It can be used as the intermediate of organic light-emitting diodes (OLEDs)

Technology Process of 4-bromo-9,9'-Spirobi[9H-fluorene

There total 20 articles about 4-bromo-9,9'-Spirobi[9H-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: 98.0%

9-fluorenone (486-25-9,952573-42-1) + 2,2'-dibromobiphenyl (13029-09-9) → 4-bromo-9,9’-spirobi[9H-fluorene] (1161009-88-6)

Guidance literature:

2,2'-dibromobiphenyl; With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 0.5h; Inert atmosphere;

9-fluorenone; In tetrahydrofuran; hexane; at -78 - 20 ℃;

With hydrogenchloride; acetic acid; In tetrahydrofuran; hexane; water; for 2h; Reflux;

Reference yield: 90.0%

→ 4-bromo-9,9’-spirobi[9H-fluorene] (1161009-88-6)

Guidance literature:

With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 0.5h; Inert atmosphere;

In tetrahydrofuran; hexane; at -78 - 20 ℃;

With hydrogenchloride; acetic acid; In tetrahydrofuran; hexane; water; for 2h; Reflux;

Reference yield: 86.0%

9-(2’-bromobiphenyl-2-yl)-9H-fluoren-9-ol (1603849-28-0) → 4-bromo-9,9’-spirobi[9H-fluorene] (1161009-88-6)

Guidance literature:

With hydrogenchloride; acetic acid; In water; for 12h; Reflux;

upstream raw materials:

9-(2’-bromobiphenyl-2-yl)-9H-fluoren-9-ol

9-fluorenone

2,2'-dibromobiphenyl

2-Bromobiphenyl

Downstream raw materials:

2-(9,9'-spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

C₃₁H₁₈BrCl

N,N,N',N'-tetraphenylspiro(cyclopenta[def]fluorene-1,5,9',9''-bifluorene)-2',7'-diamine

4-phenyl-9,9'-spirobi[fluorene]

Refernces

• 1、 Jiang, Zuoquan,Yao, Haiqing,Zhang, Zhiqiang,Yang, Chuluo,Liu, Zhongyin,Tao, Youtian,Qin, Jingui,Ma, Dongge. "Novel oligo-9.9-spirobifluorenes through ortho-linkage as full hydrocarbon host for highly efficient phosphorescent oleds". . p. 2607 - 2610. Retrieved 2009.
• 2、 -. "ORGANIC COMPOUND, AND ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME". Paragraph 0147; 0148. . Retrieved 2018/05/24.
• 3、 -. "Method for synthesizing 9,9'-spirobifluorene derivative". Paragraph 0035; 0036. . Retrieved 2019/01/05.