Description

3-(4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazol-1-Yl)Benzonitrile is a high-value, multi-functional boronic ester derivative, serving as a critical synthetic intermediate in modern organic chemistry. Its core value lies in enabling efficient 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 manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to develop novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), particularly in the development of kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides requiring specific aryl-pyrazole motifs.
• Material Science Research: Serves as a precursor for creating organic electronic materials, such as those used in OLEDs and organic photovoltaics.
• Chemical Biology & Proteomics: Employed in the synthesis of molecular probes and bioconjugation reagents for studying biological systems.
• Ligand & Catalyst Development: Utilized to construct complex chelating ligands for transition metal catalysts.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis projects and scale-up processes in fine chemical production.

Basic Information

Product Name	3-(4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazol-1-Yl)Benzonitrile
CAS No.	546142-08-9
Molecular Formula	C₁₆H₁₈BN₃O₂
Molecular Weight	295.15 g/mol
Synonyms	3-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]benzonitrile; 3-(4-(Pinacolboryl)-1H-pyrazol-1-yl)benzonitrile; 1-(3-Cyanophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; 546142-08-9; Benzonitrile, 3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]-; 3-(4-Pinacolatoboryl-1H-pyrazol-1-yl)benzonitrile
EINECS	Contact for details

Quality Control

Every batch of our 3-(4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazol-1-Yl)Benzonitrile is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive analytical testing, including HPLC, NMR, and MS, is performed to verify identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, the container should be kept sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to maintain optimal purity and reactivity. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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