Description

2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)Fluoren-9-One is a high-purity, functionalized organoboron building block essential for advanced organic synthesis. This compound matters because it serves as a critical intermediate in cross-coupling reactions, enabling the efficient construction of complex molecular architectures for high-value materials. Pharmaceutical, agrochemical, and materials science R&D laboratories need it for developing novel active ingredients and functional organic materials.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key boronic ester precursor for constructing biaryl and conjugated systems in drug discovery and material science.
• Pharmaceutical Intermediate: Used in the synthesis of potential drug candidates, especially those containing a fluorenone core for biological activity.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a building block for electron-transport or host materials in display and lighting technologies.
• Agrochemical Synthesis: Employed in creating novel active ingredients with enhanced efficacy for crop protection.
• Polymer and Material Science: Incorporated into polymers and small molecules to modify electronic properties, solubility, and thermal stability.
• Ligand and Catalyst Development: Used to synthesize novel ligands for catalysis or as a functional handle in metal-organic frameworks (MOFs).

Basic Information

Product Name	2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)Fluoren-9-One
CAS No.	1021306-45-5
Molecular Formula	C23H25BO3
Molecular Weight	360.26 g/mol
Synonyms	9-Oxo-9H-fluorene-2-boronic acid pinacol ester; 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluoren-9-one; Fluoren-9-one, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-; 2-(9-Oxo-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 2-Fluoren-9-oneboronic acid pinacol ester; 2-Pinacolatoboryl-9-fluorenone
EINECS	Contact for details

Quality Control

Every batch of 2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)Fluoren-9-One is produced and tested under strict quality management systems to ensure consistency and reliability for sensitive synthetic applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (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.