Description

E-Phenylethenylboronic Acid is a versatile organoboron compound, specifically a vinylboronic acid derivative, that serves as a critical building block in modern synthetic chemistry. Its primary value lies in its role as a key coupling partner in Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex carbon-carbon bonds. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality reagents for developing new active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates via palladium-catalyzed cross-coupling reactions.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides that require specific styryl or substituted ethylene motifs.
• Material Science & OLED Development: Serves as a monomer or building block for creating conjugated polymers, organic semiconductors, and light-emitting materials for electronic devices.
• Ligand & Catalyst Preparation: Employed in the synthesis of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Research & Development: A fundamental reagent in academic and industrial R&D labs for exploring new synthetic methodologies and constructing complex organic architectures.
• Fine Chemical Production: Integral to the multi-step synthesis of specialty chemicals, flavors, and fragrances requiring precise molecular assembly.

Basic Information

Product Name	E-Phenylethenylboronic Acid
CAS No.	6783-05-7
Molecular Formula	C8H9BO2
Molecular Weight	147.97 g/mol
Synonyms	trans-2-Phenylethenylboronic Acid; (E)-2-Phenylethenylboronic Acid; (E)-Styrylboronic Acid; trans-Styrylboronic Acid; (E)-Vinylphenylboronic Acid; (E)-β-Styrylboronic Acid; (E)-1-Phenylvinylboronic Acid; Boronic acid, B-[(1E)-2-phenylethenyl]-
EINECS	Contact for details

Quality Control

Our E-Phenylethenylboronic Acid is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for sensitive cross-coupling applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation and maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Assay	≥ 95.0%
Water Content (KF)	≤ 1.0%

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