1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL]
![1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] Structure](CAS/GIF/325129-69-9.gif)
- CAS No.
- 325129-69-9
- Chemical Name:
- 1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL]
- Synonyms
- 7-DIYL)BIS[4;1,3,2-Dioxaborolane;9-DIMETHYL-9H-FLUORENE-2;1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIME;2,2'-(9,9-dimethyl-9H-fluorene-2,7-diyl);9,9-Dimethylfluorene-2,7-diboronic acid bis;9,9-Dimethylfluorene-2,7-Bis(Boronic acid pinacol ester);2,7-Diboronic acid bis(pinacol) ester-9,9-dimethylfluorene;9,9-Dimethylfluorene-2,7-diboronic acid bis(pinacol) ester;9,9-Dimethylfluorene-2,7-diboronicacidbis(pinacol)ester,95%
- CBNumber:
- CB1842616
- Molecular Formula:
- C27H36B2O4
- Molecular Weight:
- 446.19
- MDL Number:
- MFCD08704230
- MOL File:
- 325129-69-9.mol
| Product description | Number | Pack Size | Price |
| 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene >98.0%(HPLC)(T) | B5157 | 1g | $44 |
| 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene >98.0%(HPLC)(T) | B5157 | 5g | $219 |
| 1,3,2-Dioxaborolane,2,2''-(9,9-dimethyl-9h-fluorene-2,7-diyl)bis[4,4,5,5-tetramethyl] | D485275 | 100mg | $45 |
| 9,9-DiMethylfluorene-2,7-diboronic acid bis | 273578 | 1g | $392 |
| 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene,≥98%(HPLC) ≥98%(HPLC) | 39980 | 5G | $528.82 |
| More product size | |||
| Boiling point | 559.4±43.0 °C(Predicted) |
|---|---|
| Density | 1.09±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 |
| CAS DataBase Reference | 325129-69-9 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H332-H312 | |||||||||
| Precautionary statements | P264-P270-P301+P312-P330-P501-P261-P271-P304+P340-P312-P280-P302+P352-P312-P322-P363-P501 | |||||||||
| HS Code | 2931900090 | |||||||||
| NFPA 704 |
|
1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] price More Price(19)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | B5157 | 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene >98.0%(HPLC)(T) | 325129-69-9 | 1g | $44 | 2025-07-31 | Buy |
| TCI Chemical | B5157 | 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene >98.0%(HPLC)(T) | 325129-69-9 | 5g | $219 | 2025-07-31 | Buy |
| TRC | D485275 | 1,3,2-Dioxaborolane,2,2''-(9,9-dimethyl-9h-fluorene-2,7-diyl)bis[4,4,5,5-tetramethyl] | 325129-69-9 | 100mg | $45 | 2021-12-16 | Buy |
| Usbiological | 273578 | 9,9-DiMethylfluorene-2,7-diboronic acid bis | 325129-69-9 | 1g | $392 | 2021-12-16 | Buy |
| Chem-Impex | 39980 | 2,7-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene,≥98%(HPLC) ≥98%(HPLC) | 325129-69-9 | 5G | $528.82 | 2021-12-16 | Buy |
1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] Chemical Properties,Uses,Production
Uses
1,3,2-Dioxaborolane, 2,2''-(9,9-dimethyl-9h-fluorene-2,7-diyl)bis[4,4,5,5-tetramethyl]
Synthesis
28320-32-3
73183-34-3
![1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL]](/CAS/GIF/325129-69-9.gif)
325129-69-9
General procedure for the synthesis of 9,9-dimethylfluorene-2,7-diboronic acid pinacol ester from 2,7-dibromo-9,9-dimethylfluorene and pinacol ester of bis(pinacolato): 2,7-dibromo-9,9-dimethyl-9H-fluorene (130 g, 369 mmol), bis(pinacolato)diborane (225 g, 886 mmol), and potassium acetate (217 g, 2.22 mol ) were suspended in 1.4 L of dioxane. The mixed solution was degassed and saturated with argon. PdCl2(dppf)CH2Cl2 (15 g, 18 mmol) was subsequently added. The reaction mixture was heated to reflux and kept for 4 hours under the protection of inert atmosphere. After completion of the reaction, the mixture was filtered and the filtrate was washed with dioxane. The crude product was subjected to Soxhlet extraction using THF as a solvent to extract the residue, after which it was filtered again. A final 137 g of gray solid product was obtained in 83% of the theoretical yield. The purity of the product was confirmed by NMR (CDCl3 as solvent) and was greater than 95%. The following compounds were prepared using similar methods:
References
[1] Patent: CN105636944, 2016, A. Location in patent: Paragraph 0213; 0214; 0215; 0216
[2] Patent: CN108558769, 2018, A. Location in patent: Paragraph 0068; 0069; 0071
[3] Journal of Medicinal Chemistry, 2014, vol. 57, # 5, p. 2033 - 2046
[4] Patent: WO2013/180376, 2013, A1. Location in patent: Paragraph 240; 241; 242; 243
[5] Patent: EP1762553, 2007, A1. Location in patent: Page/Page column 27-28
1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20175 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13456 | 58 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| AB PharmaTech,LLC | 323-480-4688 | sales@acrospharmatech.com | United States | 989 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29852 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9636 | 58 |
| SHANGHAI T&W PHARMACEUTICAL CO., LTD. | +86-021-61551413 +8618813727289 | contact@trustwe.com | China | 5743 | 58 |
View Lastest Price from 1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-09-25 | 9,9-DiMethylfluorene-2,7-diboronic acid bis(pinacol) ester
325129-69-9
|
US $200.00-1.00 / KG | 1KG | 99%, 99.5% Sublimated | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
 |
2025-07-02 | 9,9-DiMethylfluorene-2,7-diboronic acid bis(pinacol) ester
325129-69-9
|
US $0.00 / KG | 1KG | 98.00% | 150KG /month | Shanghai Daken Advanced Materials Co.,Ltd | |
![1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL] pictures](https://img.chemicalbook.com/ProductImageEN/2018-8/Small/0c0e70c7-e8ed-41f1-877f-a6d0c1147f7b.gif) |
2019-07-06 | 1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL]
325129-69-9
|
US $2.00 / KG | 1KG | 99% | customise | Career Henan Chemical Co |
-
- 9,9-DiMethylfluorene-2,7-diboronic acid bis(pinacol) ester
325129-69-9
- US $200.00-1.00 / KG
- 99%, 99.5% Sublimated
- Henan Fengda Chemical Co., Ltd
-
- 9,9-DiMethylfluorene-2,7-diboronic acid bis(pinacol) ester
325129-69-9
- US $0.00 / KG
- 98.00%
- Shanghai Daken Advanced Materials Co.,Ltd
-
- 1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL]
325129-69-9
- US $2.00 / KG
- 99%
- Career Henan Chemical Co
325129-69-9(1,3,2-DIOXABOROLANE, 2,2'-(9,9-DIMETHYL-9H-FLUORENE-2,7-DIYL)BIS[4,4,5,5-TETRAMETHYL])Related Search:
1of4
