Description

trans-2-(4-Ethylphenyl)Vinylboronic Acid Pinacol Ester, 97% is a high-purity, organoboron building block essential for modern synthetic chemistry, particularly in cross-coupling reactions. This compound provides a critical, stable vinyl boronate moiety for constructing complex molecular architectures with high selectivity and yield. It is primarily utilized by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials 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 to introduce a vinyl-substituted phenyl group into complex molecules.
• Pharmaceutical Intermediate Synthesis: Used in the research and development of active pharmaceutical ingredients (APIs), especially those requiring styrenyl or vinylarene motifs.
• Agrochemical Product Development: Serves as a building block for creating novel herbicides, fungicides, and insecticides with tailored properties.
• Material Science & Organic Electronics: Employed in the synthesis of conjugated polymers and small molecules for OLEDs, organic photovoltaics, and semiconductors.
• Ligand and Catalyst Preparation: Useful for modifying phosphine or N-heterocyclic carbene (NHC) ligands to create novel metal complexes.
• Chemical Biology & Probe Development: Facilitates the site-specific labeling of biomolecules or the creation of activity-based probes for biochemical studies.

Basic Information

Product Name	trans-2-(4-Ethylphenyl)Vinylboronic Acid Pinacol Ester, 97%
CAS No.	870717-91-2
Molecular Formula	C16H23BO2
Molecular Weight	258.16 g/mol
Synonyms	trans-2-(4-Ethylstyryl)boronic Acid Pinacol Ester; (E)-2-(4-Ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4-Ethyl-trans-styrylboronic Acid Pinacol Ester; (E)-2-(4-Ethylphenyl)ethenylboronic Acid Pinacol Ester; 870717-91-2; Vinylboronic Acid Pinacol Ester, trans-2-(4-Ethylphenyl)-; Boronic acid, B-[2-(4-ethylphenyl)ethenyl]-, 4,4,5,5-tetramethyl-1,3,2-dioxaborolane ester, (E)-
EINECS	Contact for details

Quality Control

Our trans-2-(4-Ethylphenyl)Vinylboronic Acid Pinacol Ester, 97% is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and GC analysis, to verify identity, purity, and the absence of critical impurities. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) when prolonged exposure is anticipated to maintain optimal purity and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	< 0.5%

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