4-(Trimethylsilyl)phenylboronic acid
- CAS No.
- 17865-11-1
- Chemical Name:
- 4-(Trimethylsilyl)phenylboronic acid
- Synonyms
- (4-trimethylsilylphenyl)boronic acid 97%min;AKOS BRN-0431;4-(Trimethylsilyl)phenyl]boronic;4-triemthylsilylphenylboronic acid;p-Trimethylsilylbenzeneboronic acid;4-TRIMETHYLSILYLBENZENEBORONIC ACID;P-(TRIMETHYLSILYL)PHENYLBORONIC ACID;4-(trimethylsilane) phenylboric acid;4-(Trimethylsilyl)phenylboronic acid;4- (trimethyl silicon) phenylboronic acid
- CBNumber:
- CB1376931
- Molecular Formula:
- C9H15BO2Si
- Molecular Weight:
- 194.11
- MDL Number:
- MFCD00093348
- MOL File:
- 17865-11-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 173-178 °C (lit.) |
|---|---|
| Boiling point | 294.4±42.0 °C(Predicted) |
| Density | 1.01±0.1 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | 8.42±0.10(Predicted) |
| color | White to Almost white |
| InChI | InChI=1S/C9H15BO2Si/c1-13(2,3)9-6-4-8(5-7-9)10(11)12/h4-7,11-12H,1-3H3 |
| InChIKey | NRPZMSUGPMYBCQ-UHFFFAOYSA-N |
| SMILES | B(C1=CC=C([Si](C)(C)C)C=C1)(O)O |
| CAS DataBase Reference | 17865-11-1(CAS DataBase Reference) |
| UNSPSC Code | 12352103 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319 |
| Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| Safety Statements | 24/25 |
| WGK Germany | 3 |
| HS Code | 29319090 |
| Storage Class | 13 - Non Combustible Solids |
4-(Trimethylsilyl)phenylboronic acid price More Price(57)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 523674 | 4-(Trimethylsilyl)phenylboronic acid ≥95.0% | 17865-11-1 | 1g | $45.5 | 2023-06-20 | Buy |
| Sigma-Aldrich | 523674 | 4-(Trimethylsilyl)phenylboronic acid ≥95.0% | 17865-11-1 | 5g | $190 | 2023-06-20 | Buy |
| TCI Chemical | T2664 | 4-(Trimethylsilyl)phenylboronic Acid (contains varying amounts of Anhydride) | 17865-11-1 | 1g | $48 | 2026-04-30 | Buy |
| TCI Chemical | T2664 | 4-(Trimethylsilyl)phenylboronic Acid (contains varying amounts of Anhydride) | 17865-11-1 | 5g | $169 | 2026-04-30 | Buy |
| Biosynth | FT40289 | 4-(Trimethylsilyl)pheNylboroNic acid | 17865-11-1 | 0.25kg | $900 | 2026-06-04 | Buy |
4-(Trimethylsilyl)phenylboronic acid Chemical Properties, Uses, Production
Chemical Properties
White solid
Synthesis
6999-03-7
17865-11-1
General procedure for the synthesis of 4-trimethylsilylphenylboronic acid from 1-bromo-4-trimethylsilylbenzene: 1-bromo-4-(trimethylsilyl)benzene (25 g, 0.10 mol) was placed in a 1-bulb flask and operated under argon protection. After addition of tetrahydrofuran (500 mL), the reaction mixture was cooled to -78 °C and stirred for 10 min. Slowly n-butyllithium (2.5 M hexane solution, 43.6 mL, 0.10 mol) was added dropwise and stirring was continued for 1 hour and 30 minutes at a maintained temperature of -78 °C. Subsequently, trimethyl borate (13.6 mL, 0.11 mol) was added at the same temperature. The reaction mixture was stirred at -78 °C for 30 minutes and then gradually warmed up to room temperature and continued stirring for 4 hours. After completion of the reaction, extraction was carried out with distilled water and ethyl acetate. The organic layer was dried with anhydrous magnesium sulfate and the solvent was subsequently removed by rotary evaporator. Finally, the target product 4-trimethylsilylphenylboronic acid (18 g, 85% yield) was purified by column chromatography using hexane and ethyl acetate as eluents.
References
[1] Patent: WO2010/140801, 2010, A1. Location in patent: Page/Page column 18
[2] Macromolecules, 2003, vol. 36, # 7, p. 2327 - 2332
[3] Organic and Biomolecular Chemistry, 2003, vol. 1, # 9, p. 1609 - 1624
4-(Trimethylsilyl)phenylboronic acid Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Anhui Yongsheng Pharmaceutical Technology Co., Ltd | 3307 18017383231 | 983544897@qq.com | China | 942 | 58 |
| Huzhou Chenghong Biotechnology Co., Ltd. | 13626726938 | 13626726938@163.cn | China | 330 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Wuhan Chemwish Technology Co., Ltd | 86-027-67849912 | sales@chemwish.com | China | 35884 | 56 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| ZhengZhou HuaWen Chemical Co.Ltd | 0370-2785118 17550508557 | 675141927@qq.com | China | 3201 | 55 |
View Latest Price from 4-(Trimethylsilyl)phenylboronic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-08-25 | [4-(Trimethylsilyl)phenyl]boronic acid
17865-11-1
|
$3.00-9.00 | 99% | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |||
![]() |
2020-01-09 | 4-(TRIMETHYLSILYL)PHENYLBORONIC ACID
17865-11-1
|
$2.00 | 1g | 98%min | Career Henan Chemical Co |
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![[4-(Trimethylsilyl)phenyl]boronic acid pictures](/ProductImageEN1/2025-07/Small/59aba523-e6da-4c63-89ff-b95f6ad626d7.png)
- [4-(Trimethylsilyl)phenyl]boronic acid
17865-11-1
- $3.00-9.00
- 99%
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-

- 4-(TRIMETHYLSILYL)PHENYLBORONIC ACID
17865-11-1
- $2.00
- 98%min
- Career Henan Chemical Co





