Description

4-((4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazol-1-Yl)Methyl)Benzonitrile is a high-value, multifunctional chemical building block that combines a pyrazole core with a pinacol boronate ester and a benzonitrile group. This compound matters for its critical role as a versatile intermediate in modern synthetic chemistry, enabling the construction of complex molecular architectures through cross-coupling reactions. Pharmaceutical, agrochemical, and advanced materials researchers need it for developing new active ingredients and functional polymers. Its unique structure offers precise control in medicinal chemistry and materials science applications.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly for kinase inhibitors and other targeted therapies via Suzuki-Miyaura cross-coupling reactions.
• Agrochemical Research: Used in developing new generation pesticides and herbicides where the pyrazole-boronate moiety is essential for bioactivity.
• Material Science & OLED Development: Serves as a precursor for creating organic electronic materials, including charge-transport layers and emissive materials in OLED displays.
• Ligand Synthesis for Catalysis: Employed in the preparation of sophisticated pyrazole-based ligands for transition metal catalysis.
• Chemical Biology Probes: Utilized in synthesizing labeled compounds and probes for studying biological pathways and protein interactions.
• Polymer & Resin Modification: Acts as a functional monomer or cross-linking agent to introduce specific chemical handles into polymer backbones.

Basic Information

Product Name	4-((4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazol-1-Yl)Methyl)Benzonitrile
CAS No.	1205683-41-5
Molecular Formula	C18H22BN3O2
Molecular Weight	323.20 g/mol
Synonyms	4-((4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)benzonitrile; 4-[(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl]benzonitrile; 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-[(4-cyanophenyl)methyl]pyrazole; 1-[(4-Cyanophenyl)methyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(4-cyanobenzyl)pyrazole; Pyrazole Boronic Acid Pinacol Ester Derivative; BoroPyrazole-CN Benzyl Derivative
EINECS	Contact for details

Quality Control

Our 4-((4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazol-1-Yl)Methyl)Benzonitrile is manufactured under strict quality management systems. Products undergo rigorous analytical testing, including HPLC, NMR, and LC-MS, to ensure high purity and structural identity suitable for research and development applications. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request for every batch.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C in a cool, dry place. This compound is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air, moisture, or elevated temperatures should be avoided to maintain stability and purity.

Specification

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