Description

9H-Fluorene-9,9-Dipropanoic Acid, 2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-, 9,9-Bis(1,1-Dimethylethyl) Ester is a high-value, multi-functional boronic ester derivative of fluorene, designed as a key synthetic intermediate for advanced materials and pharmaceuticals. Its core value lies in the combination of a robust fluorene core with a protected boronic acid group, enabling precise cross-coupling reactions for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in organic synthesis, particularly those developing OLED materials, pharmaceutical active ingredients, and specialty polymers.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: Serves as a critical boronic ester reagent for constructing carbon-carbon bonds in complex organic molecules.
• OLED (Organic Light-Emitting Diode) Material Synthesis: Used as a building block for creating novel electron-transporting or host materials in display and lighting technologies.
• Pharmaceutical Intermediate: Employed in the synthesis of active pharmaceutical ingredients (APIs) that require a functionalized fluorene scaffold.
• Polymer Chemistry: Acts as a monomer or chain-extender for producing high-performance, functional polymers with specific optical or electronic properties.
• Ligand and Catalyst Development: Utilized to create novel ligands for catalysis or as a precursor for metal-organic frameworks (MOFs).
• Material Science Research: A valuable tool for academic and industrial R&D focused on novel organic semiconductors and optoelectronic materials.

Basic Information

Product Name	9H-Fluorene-9,9-Dipropanoic Acid, 2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-, 9,9-Bis(1,1-Dimethylethyl) Ester
CAS No.	1067250-02-5
Molecular Formula	C₃₁H₄₁BO₆
Molecular Weight	520.46 g/mol
Synonyms	2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-bis(tert-butyl) 9H-fluorene-9,9-dipropanoate; 9,9-Bis(1,1-dimethylethyl) 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene-9,9-dipropanoate; 9,9-Di-tert-butyl 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene-9,9-dipropanoate; Fluorene-2-boronic acid pinacol ester, 9,9-dipropionic acid di-tert-butyl ester; 2-BPin-Fluorene-9,9-dipropionic acid di-tert-butyl ester; tert-Butyl 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene-9,9-dipropanoate
EINECS	Contact for details

Quality Control

Our 9H-Fluorene-9,9-Dipropanoic Acid, 2-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-, 9,9-Bis(1,1-Dimethylethyl) Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for sensitive synthetic applications. Each lot undergoes comprehensive analytical characterization, including HPLC, NMR (¹H and ¹³C), and mass spectrometry. Certificates of Analysis (COA) detailing all specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to exclude moisture. For long-term storage, consider storing under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
¹H NMR	Conforms to structure
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.