2-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester
2-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester (CAS: 1218790-52-3; Formula: C17H25BO2Si; MW: 300.28) is a valuable organometallic reagent and boronate ester derivative. Its structure incorporates a trimethylsilyl-protected alkyne and a boronate ester, making it suitable for various cross-coupling reactions. This compound is primarily employed in organic synthesis for the construction of complex molecular architectures in research and development settings.
- IUPAC
- 4,4,5,5-Tetramethyl-2-[2-[(trimethylsilyl)ethynyl]phenyl]-1,3,2-dioxaborolane
- Synonyms
- 4,4,5,5-Tetramethyl-2-[2-[(trimethylsilyl)ethynyl]phenyl]-1,3,2-dioxaborolane
![2-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester (C17H25BO2Si) — chemical structure, CAS 1218790-52-3; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1218790-52-3.png&w=3840&q=75)
Cross-Coupling Reactions
Utilised as a coupling partner in reactions such as Suzuki-Miyaura coupling to form new carbon-carbon bonds. The presence of the boronate ester facilitates facile coupling with aryl or vinyl halides and triflates.
Organic Synthesis
Serves as a building block in multi-step syntheses of complex organic molecules. The ethynyl and boronate ester functionalities allow for sequential and selective chemical transformations.
Materials Science Research
Potential applications in the development of novel organic materials where conjugated systems incorporating boron and silicon are desired. Its structure may lend itself to tuning electronic or optical properties.
| Molecular weight | 300.28 |
|---|---|
| Empirical formula | C17H25BO2Si |
| Assay | 97% |
| Density | 0.959 g/mL at 25 °C |
| Refractive index | n20/D 1.514 |
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | >110 °C / >230 °F |
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester used for?
+
This compound is primarily used as a reagent in organic synthesis, particularly in cross-coupling reactions like Suzuki-Miyaura coupling, to build complex molecular structures.
What are the CAS number and formula for this compound?
+
The CAS number is 1218790-52-3, and the empirical formula is C17H25BO2Si.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this product with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmaceutical grade.
How should 2-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester be handled?
+
Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. It has a flash point above 110 °C (230 °F) and is classified with WGK 3 in Germany.
How is this chemical packed, shipped, and exported?
+
Tech Serve Solutions ensures secure packaging suitable for chemical export. Specific packing configurations are available upon request, and we are experienced in global export logistics.
How can I request a sample or a quote?
+
To request a sample or a quote for 2-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester, please use the contact form on our website or contact our sales department directly.
▶ Related products
1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis
1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis