Description

9,9-Spirodifluorene-2-Boronic Acid Pinacol Ester is a high-purity, functionalized organic building block featuring a rigid spirobifluorene core. This compound is valued for its role as a key monomer in the synthesis of advanced organic electronic materials, where its structure imparts excellent thermal stability and morphological control. It is primarily sought by R&D chemists and process engineers in the organic light-emitting diode (OLED), organic photovoltaic (OPV), and semiconductor industries for constructing novel polymers and small molecules.

Application

• OLED Materials Synthesis: A crucial monomer for constructing host, hole-transport, or electron-transport materials in display and lighting technologies.
• Organic Photovoltaic (OPV) Devices: Used in Suzuki-Miyaura cross-coupling reactions to build conjugated polymer backbones for solar cell active layers.
• Organic Field-Effect Transistors (OFETs): Serves as a building block for high-performance semiconducting polymers.
• Chemical Research & Development: A versatile intermediate for synthesizing novel spiro-annulated compounds and complex organic architectures.
• Luminescent Materials: Employed in the development of fluorescent sensors, dyes, and bio-imaging agents.
• Pharmaceutical Intermediates: Potential use in creating rigid, three-dimensional scaffolds for drug discovery programs.

Basic Information

Product Name	9,9-Spirodifluorene-2-Boronic Acid Pinacol Ester
CAS No.	884336-44-1
Molecular Formula	C29H27BO2
Molecular Weight	418.34 g/mol
Synonyms	2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[9H-fluorene]; 9,9'-Spirobi[9H-fluorene]-2-boronic acid pinacol ester; 2-(9,9'-Spirobifluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; SBF-BPin; 2-Borono-9,9'-spirobifluorene pinacol ester; 9,9-Spirobifluorene-2-boronic acid pinacol ester; 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)spirobifluorene
EINECS	Contact for details

Quality Control

Our 9,9-Spirodifluorene-2-Boronic Acid Pinacol Ester is manufactured under strict quality protocols to ensure batch-to-batch consistency for sensitive electronic applications. Each lot is characterized by advanced analytical techniques including NMR, HPLC, and GC-MS to confirm structural identity and high purity. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical data is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C under an inert atmosphere (e.g., nitrogen or argon) due to its moisture-sensitive (hygroscopic) nature. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.