Description

4-(Ethoxycarbonylmethyl)Phenylboronic Acid, Pinacol Ester is a high-purity, synthetically valuable boronic ester derivative. This compound serves as a crucial protected intermediate in modern organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions, enabling the construction of complex biaryl structures. It is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality building blocks for drug discovery and fine chemical production.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates via palladium-catalyzed cross-coupling.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides that require specific biaryl motifs.
• Material Science: Employed in the creation of organic electronic materials, such as those for OLEDs and semiconductors, where precise molecular architecture is critical.
• Chemical Research & Development: Serves as a versatile reagent in academic and industrial R&D labs for constructing complex organic molecules and exploring new synthetic methodologies.
• Ligand and Catalyst Preparation: Acts as a precursor for synthesizing specialized ligands and organometallic catalysts.

Basic Information

Product Name	4-(Ethoxycarbonylmethyl)Phenylboronic Acid, Pinacol Ester
CAS No.	859169-20-3
Molecular Formula	C16H23BO4
Molecular Weight	290.16 g/mol
Synonyms	[4-(Ethoxycarbonyl)benzyl]boronic acid pinacol ester; Pinacol [4-(ethoxycarbonyl)benzyl]boronate; 4-(Ethoxycarbonyl)benzylboronic Acid Pinacol Ester; (4-(Ethoxycarbonyl)phenyl)methylboronic Acid Pinacol Ester; B-[4-(Ethoxycarbonyl)phenyl]methylboronic Acid Pinacol Ester; CAS 859169-20-3; 4-Carbethoxymethylphenylboronic Acid Pinacol Ester
EINECS	Contact for details

Quality Control

Our 4-(Ethoxycarbonylmethyl)Phenylboronic Acid, Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment 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 product is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

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

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