Description

9,9-Dimethylfluorene-3-Boronic Acid Pinacol Ester is a high-purity, organoboron building block essential for modern synthetic chemistry. This compound matters for its role as a key intermediate in cross-coupling reactions, enabling the precise construction of complex organic frameworks. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries for creating novel compounds and functional materials.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A critical reagent for forming carbon-carbon bonds between aryl halides and this boronic ester, widely used in medicinal chemistry.
• Pharmaceutical Intermediate Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and drug candidates, particularly those with fluorene-based structures.
• Organic Light-Emitting Diode (OLED) Materials: Used in the synthesis of advanced organic semiconductors and emissive layer materials for display and lighting technologies.
• Agrochemical Research: Employed in creating novel herbicides, fungicides, and insecticides with tailored properties.
• Polymer and Material Science: Acts as a monomer or functionalization agent for producing specialty polymers with specific electronic or optical characteristics.
• Ligand and Catalyst Development: Useful for synthesizing novel ligands for transition metal catalysts used in asymmetric synthesis.

Basic Information

Item	Details
Product Name	9,9-Dimethylfluorene-3-Boronic Acid Pinacol Ester
CAS No.	1346007-02-0
Molecular Formula	C21H25BO2
Molecular Weight	320.23 g/mol
Synonyms	3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene; 9,9-Dimethyl-3-fluorenylboronic Acid Pinacol Ester; 9,9-Dimethylfluoren-3-ylboronic Acid Pinacol Ester; 9,9-Dimethyl-3-fluorenylboronic Acid, Pinacol Ester; 9,9-Dimethyl-3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)fluorene; 3-Borono-9,9-dimethylfluorene Pinacol Ester; 9,9-Dimethylfluorene-3-boronic Acid, Pinacol Ester
EINECS	Contact for details

Quality Control

Our 9,9-Dimethylfluorene-3-Boronic Acid Pinacol Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and scale-up applications. Each lot undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis. Certificates of Analysis (COA) detailing purity and impurity profiles are available upon request to support your quality assurance and regulatory documentation 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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) 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.