Description

4-Cyano-trans-β-Styrylboronic Acid Pinacol Ester is a high-value, organoboron building block crucial for modern synthetic chemistry, particularly in cross-coupling reactions. Its primary value lies in enabling the efficient and selective construction of complex molecular architectures, which is essential for developing advanced materials and pharmaceuticals. This compound is primarily needed by researchers and process chemists in the pharmaceutical, agrochemical, and materials science industries for drug discovery, catalyst development, and the synthesis of functional organic molecules.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key reagent for forming carbon-carbon bonds between aryl/vinyl halides and this boronic ester derivative, essential for constructing biaryl and conjugated systems.
• Pharmaceutical Intermediate Synthesis: Used in the research and development of active pharmaceutical ingredients (APIs), especially those containing cyanostilbene or extended π-conjugated frameworks.
• Material Science & OLED Development: Serves as a precursor for synthesizing organic light-emitting diode (OLED) materials, liquid crystals, and other advanced organic electronic components due to its conjugated structure and functional groups.
• Agrochemical Research: Employed in creating novel herbicide and pesticide candidates by introducing the cyanostyryl moiety into target molecules.
• Chemical Biology & Probe Development: Useful for synthesizing fluorescent probes or molecular tags that leverage its photophysical properties for imaging and diagnostic applications.
• Polymer Chemistry: Can be incorporated as a monomer or chain-transfer agent to create specialty polymers with tailored optical or electronic properties.

Basic Information

Product Name	4-Cyano-trans-β-Styrylboronic Acid Pinacol Ester
CAS No.	172512-93-5
Molecular Formula	C₁₇H₂₀BNO₂
Molecular Weight	281.16 g/mol
Synonyms	trans-4-Cyanostyrylboronic Acid Pinacol Ester; (E)-4-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)benzonitrile; 4-Cyanostyrylboronic Acid Pinacol Ester; 4-CN-Ph-CH=CH-Bpin; 2-[2-(4-Cyanophenyl)ethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; Boronic acid, B-[2-(4-cyanophenyl)ethenyl]-, 1,1-dimethylethyl ester; (E)-4-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)benzonitrile
EINECS	Contact for details

Quality Control

Our 4-Cyano-trans-β-Styrylboronic Acid Pinacol Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is analyzed using advanced techniques including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label. This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) when possible to maintain stability and purity. Keep the container tightly sealed in a desiccator for long-term storage.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥97.0% (Area %)
Water Content (KF)	≤0.5%
Heavy Metals	≤20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.