4,4′-(Acetylene-1,2-diyl)bis(phenylboronic acid pinacol ester)
4,4′-(Acetylene-1,2-diyl)bis(phenylboronic acid pinacol ester), CAS 849681-64-7, boasts a molecular weight of 430.15 g/mol. This organoboron compound serves as a valuable building block in organic synthesis, particularly in cross-coupling reactions. Its structure, featuring two pinacol boronate ester groups linked by an acetylene bridge, enables diverse chemical transformations for the development of complex molecules in materials science and pharmaceutical research.
- IUPAC
- 1,2-Bis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetylene
- Synonyms
- 849681-64-7C26H32B2O41,2-Bis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetylene

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic compounds. Its bifunctional nature allows for sequential or simultaneous coupling reactions, facilitating the construction of complex molecular architectures.
Materials Science
Applications in the development of advanced materials, such as organic semiconductors and polymers. The rigid acetylene linker and reactive boronate ester functionalities can be incorporated into conjugated systems for tunable electronic and optical properties.
Pharmaceutical Research
Serves as a versatile reagent in medicinal chemistry for the preparation of drug candidates. Its ability to participate in Suzuki-Miyaura coupling enables the efficient introduction of diverse aryl or heteroaryl moieties.
| Molecular weight | 430.15 |
|---|---|
| Empirical formula | C26H32B2O4 |
| Assay | 95% |
| Melting point | 275-280 °C |
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 4,4′-(Acetylene-1,2-diyl)bis(phenylboronic acid pinacol ester) used for?
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This compound is primarily used as an intermediate in organic synthesis, particularly for constructing complex molecules through cross-coupling reactions in materials science and pharmaceutical research.
What is the CAS number and formula for this chemical?
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The CAS number is 849681-64-7, and the empirical formula is C26H32B2O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 95%. We do not represent it as USP, BP, or EP grade.
How should this chemical be handled?
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According to GHS classification, this chemical is considered hazardous. Users should consult the Safety Data Sheet (SDS) and handle it with appropriate personal protective equipment in a well-ventilated area.
Is this chemical available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4,4′-(Acetylene-1,2-diyl)bis(phenylboronic acid pinacol ester), and can arrange for international shipment.
How can I request a sample or quote?
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To request a sample or a quote for 4,4′-(Acetylene-1,2-diyl)bis(phenylboronic acid pinacol ester), please contact our sales team through the website or via email, providing your specific requirements.
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