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

Product Name: 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane
CAS No.: 1161009-89-7
Chemical Name: 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane
Synonyms: 4-(9,9'-Spirobifluorenyl)pinacolboronate;9,9'-Spirobi[fluorene]-4-boronic Acid Pinacol Ester;(9,9'-Spirobi[fluoren]-4-yl)boronic Acid Pinacol Ester;9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester;Name: 9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester;4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene];2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan -2-yl)-9,9'-spirobi[fluorene];2-(9,9'-spirobi[fluorene]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane
CBNumber: CB73060163
Molecular Formula: C31H27BO2
Formula Weight: 442.36
MOL File: 1161009-89-7.mol

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

Melting point:: 216.0 to 220.0 °C
Boiling point:: 585.6±29.0 °C(Predicted)
Density: 1.23±0.1 g/cm3(Predicted)
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
form: powder to crystal
color: White to Almost white

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Safety

HS Code: 2931.90.6000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical

Product number: S0994
Product name: 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Purity: >98.0%(HPLC)(T)
Packaging: 200mg
Price: $55
Updated: 2025/07/31

TCI Chemical

Product number: S0994
Product name: 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Purity: >98.0%(HPLC)(T)
Packaging: 1g
Price: $166
Updated: 2025/07/31

TRC

Product number: S683015
Product name: 4-(9,9''-Spirobifluorenyl)pinacolboronate
Packaging: 100mg
Price: $70
Updated: 2021/12/16

AK Scientific

Product number: 0483DU
Product name: 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging: 5g
Price: $297
Updated: 2021/12/16

AK Scientific

Product number: 0483DU
Product name: 2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging: 10g
Price: $462
Updated: 2021/12/16

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4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane Chemical Properties,Usage,Production

Uses

4-(9,9''-Spirobifluorenyl)pinacolboronate acts as a reagent in the synthesis of new blue dual-core OIED emitters using Suzuki coupling reactions with (spirobifluorenyl)pinacolboronate or (borophenyl)carbazole.

Synthesis

1161009-88-6

73183-34-3

1161009-89-7

General procedure for the synthesis of 2-(9,9'-spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolanes from 4-bromo-9,9'-spirobi(fluorene) and bipinacolate: 1. 60 g (152 mmol) of 4-bromo-9,9'-spirobifluorene, 47.2 g (182.1 mmol) of pinacol ester of bisboronic acid, 3.72 g (4.55 mmol) of 1,1'-bis(diphenylphosphino)-ferrocene-palladium(II) dichloromethane complex and 44.7 g (455 mmol) of potassium acetate were dissolved in 600 ml of toluene. 2. The reaction mixture was heated under reflux conditions for 16 hours. 3. After completion of the reaction, cool to room temperature, add 200 ml of water and continue stirring for 30 minutes. 4. Separate the organic phase and filter through a short diatomaceous earth bed. 5. The solvent was removed by pressure reducing distillation. 6. The residue was purified by multiple recrystallization through a heptane/toluene solvent mixture. 7. 67.1 g of product was obtained in 96% yield.

References

[1] Patent: WO2016/78738, 2016, A1. Location in patent: Page/Page column 66
[2] Patent: WO2012/56919, 2012, A1. Location in patent: Page/Page column 35; 37
[3] Patent: CN108658932, 2018, A. Location in patent: Paragraph 0066; 0067; 0068

4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane Preparation Products And Raw materials

Raw materials

Preparation Products

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

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View Lastest Price from 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane manufacturers

Shanghai Daken Advanced Materials Co.,Ltd

Product: 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 1161009-89-7
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98.00%
Supply Ability: 150KG /month
Release date: 2021-11-12

Career Henan Chemical Co

Product: 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 1161009-89-7
Price: US $2.00/KG
Min. Order: 1KG
Purity: 98%MIN
Supply Ability: ASK
Release date: 2019-12-25

1161009-89-7, 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-DioxaborolaneRelated Search:

9,9'-spirobi[fluorene]-2,2'-diyldiboronic acid pinacol ester 1,3,2-DIOXABOROLANE, 2-(9,9-DIMETHYL-9H-FLUOREN-2-YL)-4,4,5,5-TETRAMETHYL 9,9-Diphenylfluorene-2-Boronic acid pinacol ester 9,9'-spirobi[fluorene]-2,2'-diyldiboronic acid (2,7-BIS(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-9,9-DIOCTYLFLUORENE) 9,9-DiMethylfluorene-3-boronic acid pinacol ester 9,9-Spirodifluorene-2-Boronic acid pinacol ester 4 - boric acid pinacol ester - 9, 9 - dimethyl fluorene 9,9-Spirodifluorene-3-Boronic acid pinacol ester 9,9-diphenyl-9H-fluoreN-4-ylboronicacid 4-Pinacol ester-9,9-dipehnylfluorene 1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] 9,9-diphenyl-fluoren-3-boronic acid pinacol ester

Name: 9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester

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

9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester

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

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

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene]

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

(9,9'-Spirobi[fluoren]-4-yl)boronic Acid Pinacol Ester

4-(9,9'-Spirobifluorenyl)pinacolboronate

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolane-2-yl)-9,9′-spirobi[9H-fluoren]

4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan -2-yl)-9,9'-spirobi[fluorene]

9,9'-Spirobi[fluorene]-4-boronic Acid Pinacol Ester

2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane - [S71800]

1161009-89-7