Ossila 4,4,5,5-Tetramethyl-2-[4-(triphenylvinyl)phenyl]-1,3,2-dioxaborolane B4061

TPE-Bpin, or 4,4,5,5-Tetramethyl-2-[4-(triphenylvinyl)phenyl]-1,3,2-dioxaborolane (CAS 1260865-91-5), is a tetraphenylethylene derivative carrying a pinacolborane (Bpin) group. Supplied as a white to off-white powder with a purity above 98%, it serves as a building block for fluorescent macromolecules used in OLED and optics research.

The Bpin group is highly reactive, so the tetraphenylethylene unit can be joined to a molecular scaffold through coupling reactions such as Suzuki-Miyaura coupling. Tetraphenylethylene has a propeller-like shape and ranks among the most widely studied molecules for aggregation induced emission (AIE); for example, a benzothiadiazole end-capped with two tetraphenylethylene units displays AIE behaviour.

The compound is also commonly used to prepare electroluminescent dyes for OLEDs. A tetraphenylethylene-thienothiophene made from it reached a maximum luminescence of 400 cd/m2 and a luminous efficiency of 1.3 cd/A.

• Introducing tetraphenylethylene units onto molecular scaffolds via Suzuki-Miyaura coupling.
• Synthesis of aggregation induced emission (AIE) materials.
• Preparation of electroluminescent dyes for OLED devices.
• Building fluorescent macromolecules for optical applications.

• Product code: B4061
• M​olecular Weight: 458.41 g/mol
• Synonyms: TPE-Bpin; 4,4,5,5-tetramethyl-2-[4-(1,2,2-triphenylvinyl)phenyl]-1,3,2-dioxaborolane
• Classification: AIE materials, Tetraphenylethylene building blocks, OLEDs

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