Description

3-Acetoxy-4-Methoxyphenylboronic Acid, Pinacol Ester is a high-purity, protected boronic acid derivative, a critical intermediate in modern synthetic organic chemistry. Its primary value lies in its enhanced stability compared to the free boronic acid, making it an ideal reagent for Suzuki-Miyaura cross-coupling reactions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable building blocks for constructing complex biaryl and heterobiaryl structures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing complex biaryl motifs.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides.
• Material Science: Serves as a monomer or precursor in the creation of organic electronic materials, such as those used in OLEDs and sensors.
• Chemical Research & Development: A versatile reagent for academic and industrial R&D labs exploring new catalytic cross-coupling methodologies.
• Ligand Synthesis: Useful for preparing sophisticated ligands for catalysis and molecular recognition applications.

Basic Information

Product Name	3-Acetoxy-4-Methoxyphenylboronic Acid, Pinacol Ester
CAS No.	917757-44-9
Molecular Formula	C15H21BO5
Molecular Weight	292.14 g/mol
Synonyms	3-Acetoxy-4-methoxyphenylboronic acid pinacol ester; (3-Acetoxy-4-methoxyphenyl)boronic acid pinacol ester; 2-(3-Acetoxy-4-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4-Methoxy-3-acetoxyphenylboronic acid pinacol ester; Boronic acid, B-(3-acetoxy-4-methoxyphenyl)-, 1,1-dimethylethyl ester; CAS 917757-44-9
EINECS	Contact for details

Quality Control

Our 3-Acetoxy-4-Methoxyphenylboronic Acid, Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and GC, to ensure high chemical purity and identity. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee batch-to-batch consistency and traceability for your R&D and production 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 light-sensitive; therefore, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Assay (NMR)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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