Description

9,9'-Spirobi[Fluorene]-2,2'-Diyldiboronic Acid Pinacol Ester is a high-purity, advanced organic building block featuring a rigid spirobi[fluorene] core with two boronic ester functional groups. This compound is critical for constructing complex organic electronic materials due to its excellent planarity, thermal stability, and ability to participate in Suzuki-Miyaura cross-coupling reactions. It is primarily utilized by R&D chemists and material scientists in the organic light-emitting diode (OLED), organic photovoltaic (OPV), and semiconductor industries to develop next-generation electronic devices.

Application

• OLED Emitter and Host Material Synthesis: A key precursor for creating novel fluorescent or phosphorescent emitters and host materials in display and lighting technologies.
• Organic Photovoltaic (OPV) Cell Fabrication: Used to synthesize conjugated polymers or small molecules for the active layer in solar cells, enhancing charge transport and efficiency.
• Organic Field-Effect Transistor (OFET) Development: Serves as a building block for high-mobility organic semiconductors in flexible electronics and sensors.
• Polymer Synthesis via Cross-Coupling: Enables the formation of carbon-carbon bonds to create rigid, π-conjugated polymers with precise structural control.
• Liquid Crystal and Perovskite Material Research: Employed in the development of advanced functional materials for optoelectronic applications.
• Pharmaceutical Intermediate for Complex Molecules: Can be used in medicinal chemistry to construct sterically hindered, biaryl structures.

Basic Information

Product Name	9,9'-Spirobi[Fluorene]-2,2'-Diyldiboronic Acid Pinacol Ester
CAS No.	676168-63-1
Molecular Formula	C41H40B2O4
Molecular Weight	618.37 g/mol
Synonyms	2,2'-(9,9'-Spirobi[9H-fluorene]-2,2'-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane); 9,9'-Spirobifluorene-2,2'-diyldiboronic Acid Pinacol Ester; SBF-BPin2; 2,2'-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[9H-fluorene]; 2,2'-(9H,9'H-[9,9']Bifluorenylidene-2,2'-diyl)bis(4,4,5,5-tetramethyl-[1,3,2]dioxaborolane)
EINECS	Contact for details

Quality Control

Our 9,9'-Spirobi[Fluorene]-2,2'-Diyldiboronic Acid Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical characterization, including HPLC for purity assessment and NMR (1H, 13C, 11B) and Mass Spectrometry for structural confirmation, to ensure it meets the stringent requirements for electronic-grade materials. Certificates of Analysis (COA) with full analytical data are available upon request.

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., argon or nitrogen) 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 (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 0.5%

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