Description

2-(3-Ethylphenyl)-4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane is a high-purity organoboron reagent, specifically a pinacol boronic ester, valued for its stability and reactivity in advanced synthetic transformations. Its primary commercial value lies in its role as a key building block in cross-coupling reactions, enabling the efficient construction of complex molecular architectures. This compound is essential for R&D and production chemists in the pharmaceutical, agrochemical, and materials science industries, where it is used to introduce the 3-ethylphenyl moiety into target molecules.

Application

• Pharmaceutical Intermediate: A critical precursor in Suzuki-Miyaura cross-coupling reactions for synthesizing novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used to create advanced herbicides, fungicides, and insecticides by incorporating functionalized phenyl groups into lead structures.
• Organic Light-Emitting Diodes (OLEDs): Serves as a building block for electron-transport materials and emissive layer components in display and lighting technologies.
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Polymer and Material Science: Facilitates the synthesis of specialty monomers and polymers with tailored thermal and electronic properties.
• Chemical Research & Development: A versatile reagent for academic and industrial research in synthetic methodology development and complex molecule construction.

Basic Information

Product Name	2-(3-Ethylphenyl)-4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane
CAS No.	1075719-83-3
Molecular Formula	C14H21BO2
Molecular Weight	232.13 g/mol
Synonyms	3-Ethylbenzeneboronic Acid Pinacol Ester; (3-Ethylphenyl)boronic Acid Pinacol Ester; 3-Ethylphenylboronic Acid Pinacol Ester; 2-(3-Ethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 1,3,2-Dioxaborolane, 2-(3-ethylphenyl)-4,4,5,5-tetramethyl-; 3-Ethylphenyl-Bpin; 3-EthylphenylBPin
EINECS	Contact for details

Quality Control

Our 2-(3-Ethylphenyl)-4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC analysis, to ensure high chemical purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles 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 moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥97.0% (Area %)
Purity (GC)	≥96.0%
Water Content (KF)	≤0.5%

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