4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester
4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester (CAS: 870238-65-6) is an organoboron compound with the molecular formula C17H25BO2Si and a molecular weight of 300.28. It serves as a valuable building block in organic synthesis, particularly in cross-coupling reactions. This compound is primarily utilised in research and development settings for the construction of complex organic molecules and advanced materials.
- IUPAC
- 4,4,5,5-Tetramethyl-2-[4-[(trimethylsilyl)ethynyl]phenyl]-1,3,2-dioxaborolane
![4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester (C17H25BO2Si) — chemical structure, CAS 870238-65-6; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F870238-65-6.png&w=3840&q=75)
Organic Synthesis Intermediate
This boronate ester is employed as a key intermediate in palladium-catalysed cross-coupling reactions, such as Suzuki-Miyaura coupling. It enables the facile introduction of the 4-[(trimethylsilyl)ethynyl]phenyl moiety into various organic scaffolds.
Materials Science
The compound's structure, featuring both a boronate ester and a silyl-protected alkyne, makes it suitable for the synthesis of novel organic electronic materials, polymers, and functionalised surfaces.
Pharmaceutical Research
It can be used in the synthesis of potential drug candidates and complex pharmaceutical intermediates where the incorporation of its specific structural motif is desired.
| Molecular weight | 300.28 |
|---|---|
| Empirical formula | C17H25BO2Si |
| Assay | 97% |
| Melting point | 164-169 °C |
Hazard statements
- H413May cause long-lasting harmful effects to aquatic life
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| 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 4-[(Trimethylsilyl)ethynyl]phenylboronic acid pinacol ester used for?
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It is primarily used as a building block in organic synthesis, particularly in palladium-catalyzed cross-coupling reactions like Suzuki-Miyaura coupling, and in materials science research.
What is the CAS number and molecular formula?
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The CAS number is 870238-65-6 and the molecular formula is C17H25BO2Si.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of 97%. It is not represented as USP, BP, or EP grade.
What are the safety and handling recommendations?
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This compound may cause long lasting harmful effects to aquatic life (H413). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter.
How is this product packed, shipped, and exported?
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Tech Serve Solutions exports a wide range of chemicals globally. Specific packing and shipping details are available upon request, adhering to international regulations.
How can I request a sample or quote?
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Please contact our sales team via the website or direct inquiry to request a sample or a detailed quotation.
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