Description

4 - Boric Acid Pinacol Ester - 9, 9 - Dimethyl Fluorene CAS NO 1365692-79-0 is a specialized organoboron compound that serves as a key intermediate in advanced organic synthesis. Its value lies in its unique molecular structure, which combines a sterically hindered pinacol boronate ester with a rigid fluorene backbone, making it an excellent precursor for Suzuki-Miyaura cross-coupling reactions. This high-purity building block is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of complex drug candidates, particularly in creating novel carbon-carbon bonds for active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging the Suzuki coupling to create diverse aromatic structures.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for synthesizing advanced organic semiconductors and electron-transport materials due to the fluorene core's optoelectronic properties.
• Polymer Chemistry: Employed in the creation of specialty polymers and dendrimers with tailored properties for high-performance materials.
• Ligand and Catalyst Development: Utilized in the preparation of novel ligands for transition metal catalysts used in asymmetric synthesis.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D labs for exploring new synthetic methodologies and constructing complex molecular architectures.

Basic Information

Product Name	4 - Boric Acid Pinacol Ester - 9, 9 - Dimethyl Fluorene
CAS No.	1365692-79-0
Molecular Formula	C21H25BO2
Molecular Weight	320.23 g/mol
Synonyms	9,9-Dimethyl-9H-fluoren-4-ylboronic acid pinacol ester; (9,9-Dimethyl-9H-fluoren-4-yl)boronic acid pinacol ester; 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dimethylfluorene; 9,9-Dimethylfluorene-4-boronic acid pinacol ester; 4-Pinacolatoboryl-9,9-dimethylfluorene; 4-Borono-9,9-dimethylfluorene pinacol ester; 9,9-DMF-Bpin
EINECS	Contact for details

Quality Control

Our production of 4 - Boric Acid Pinacol Ester - 9, 9 - Dimethyl Fluorene adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and GC-MS. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory 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 compound is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent hydrolysis of the boronate ester.

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.