Description

4-Cyano-3,5-Dimethylphenylboronic Acid Pinacol Ester is a high-purity, synthetically valuable boronic ester derivative, serving as a critical protected intermediate in modern organic synthesis. Its core value lies in enabling precise carbon-carbon bond formation via Suzuki-Miyaura cross-coupling reactions, a cornerstone methodology for constructing complex molecular architectures. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials industries, where it is used to build novel active ingredients and functional organic molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly for constructing biaryl and heterobiaryl scaffolds.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides requiring specific aromatic coupling steps.
• Material Science: Precursor for creating organic electronic materials, such as polymers for OLEDs and organic photovoltaics, where controlled coupling is essential.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D labs for methodological studies and the synthesis of complex organic molecules.
• Ligand and Catalyst Development: Serves as a starting material for synthesizing specialized ligands and organometallic catalysts.
• Fine Chemical Production: Employed in the multi-step synthesis of specialty chemicals, dyes, and pigments.

Basic Information

Product Name	4-Cyano-3,5-Dimethylphenylboronic Acid Pinacol Ester
CAS No.	1111096-09-3
Molecular Formula	C15H20BNO2
Molecular Weight	257.14 g/mol
Synonyms	4-Cyano-3,5-dimethylbenzeneboronic acid pinacol ester; (4-Cyano-3,5-dimethylphenyl)boronic acid pinacol ester; 2-(4-Cyano-3,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 3,5-Dimethyl-4-cyanophenylboronic acid pinacol ester; PINACOL (4-CYANO-3,5-DIMETHYLPHENYL)BORONATE; Boronic acid, B-(4-cyano-3,5-dimethylphenyl)-, 1,1-dimethylethyl ester (9CI)
EINECS	Contact for details

Quality Control

Our 4-Cyano-3,5-Dimethylphenylboronic Acid Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high chemical purity and consistency, meeting the stringent requirements for research and process chemistry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) 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%
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.