Boronic acid, B-9,9'-spirobi[9H-fluoren]-2'-yl-

Base Information

• Chemical Name: Boronic acid, B-9,9'-spirobi[9H-fluoren]-2'-yl-
• CAS No.: 236389-21-2
• Molecular Formula: C₂₅H₁₇BO₂
• Molecular Weight: 360.22
• Hs Code.: 2931900090
• Mol file: 236389-21-2.mol

Synonyms:Boronicacid, 9,9'-spirobi[9H-fluoren]-2-yl- (9CI);Spiro-9,9'-bifluorene-2-boronicacid;

Chemical Property of Boronic acid, B-9,9'-spirobi[9H-fluoren]-2'-yl-

Chemical Property:

• Melting Point: >200°C
• Boiling Point: 588.365 °C at 760 mmHg
• PKA: 8.29±0.20(Predicted)
• Flash Point: 309.632 °C
• PSA: 40.46000
• Density: 1.37 g/cm³
• LogP: 3.70990
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C

Purity/Quality:

99% ^*data from raw suppliers

9,9''-Spirobi[fluoren]-2-ylboronicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 9,9''-Spirobi[fluoren]-2-ylboronic Acid is a useful reactant in the preparation of organic electroluminescence material for the purpose to be used as OLED.

Technology Process of Boronic acid, B-9,9'-spirobi[9H-fluoren]-2'-yl-

There total 7 articles about Boronic acid, B-9,9'-spirobi[9H-fluoren]-2'-yl- 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: 97.0%

Trimethyl borate (121-43-7,63156-11-6) + 2-bromo-9,9'-spirobifluorene (171408-76-7) → 9,9'-spirobi[9H-fluoren]-2'-yl-boronic acid (236389-21-2)

Guidance literature:

2-bromo-9,9'-spirobifluorene; With n-butyllithium; In diethyl ether; at -78 - 20 ℃; for 0.5h;

Trimethyl borate; In diethyl ether; at -78 - -10 ℃;

With hydrogenchloride; In diethyl ether; water; at -10 ℃;

Reference yield: 94.4%

Triisopropyl borate (5419-55-6) + 2-bromo-9,9'-spirobifluorene (171408-76-7) → 9,9'-spirobi[9H-fluoren]-2'-yl-boronic acid (236389-21-2)

Guidance literature:

Triisopropyl borate; 2-bromo-9,9'-spirobifluorene; With n-butyllithium; at -78 ℃; for 1.33333h;

With ammonium chloride; pH=2;

Reference yield: 80.0%

Triisopropyl borate (5419-55-6) + water (7732-18-5) + 2-bromo-9,9'-spirobifluorene (171408-76-7) → 9,9'-spirobi[9H-fluoren]-2'-yl-boronic acid (236389-21-2)

Guidance literature:

2-bromo-9,9'-spirobifluorene; With n-butyllithium; In tetrahydrofuran; at -78 ℃; for 1h; Inert atmosphere;

Triisopropyl borate; With hydrogenchloride; In tetrahydrofuran; at -78 - 20 ℃; for 1h; Inert atmosphere;

water; With hydrogenchloride; In tetrahydrofuran; pH=4 - 5; Inert atmosphere;

upstream raw materials:

Trimethyl borate

2-bromo-9,9'-spirobifluorene

2-iodobiphenyl

2-bromofluoren-9-one

Downstream raw materials:

7‐(4‐iodophenyl)‐9,9'‐spirobi[fluorene]