4-Butyl-N,N-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-4-phenyl)aniline (CAS 444289-55-8) is a triphenylamine-based building block carrying two pinacol boronic ester groups and a butyl chain that improves solubility. It is used to make hole transport semiconducting small molecules and conjugated polymers for organic light-emitting devices (OLEDs) and perovskite solar cells.
The compound is typically prepared by reacting 4-bromo-N-(4-bromophenyl)-N-(4-butylphenyl)aniline with bis(pinacolato)diboron. Polymers built from it can serve as emitting layers, phosphorescent hosts or hole transport layers; polyTPD, a widely used hole transport material, is a typical example.
Reported derived materials include the DNA-mimicking poly(triphenylamine-carbazole) PTC-U, noted for high thermal stability and strong hole injection and electron-blocking in films, and the fluorene–triarylamine copolymer PFA-OXD with bipolar charge transport. Ossila supplies it at >98% purity (1H NMR) as a white to off-white powder or crystals.
- Synthesis of hole transport layer polymers such as polyTPD for OLEDs and perovskite solar cells.
- Preparation of conjugated polymers for emitting layers and phosphorescent host materials.
- Building hole injection and electron-blocking polymers for light-emitting diodes.
- Construction of bipolar fluorene–triarylamine copolymers for phosphorescent red electroluminescent devices.
| Brand | Ossila |
|---|---|
| CAS number | 444289-55-8 |
| Molecular formula | C34H45B2NO4 |
| Purity | >98% (1H NMR) |
| Category | — |
| Pack sizes | 1 g, 2 g, 5 g, 10 g |
| Physical form | White to off-white powder/crystals |
| Storage | — |
- Product code: B1821
- Molecular Weight: 553.35 g/mol
- Synonym: 4-Butyl-N,N-bis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)aniline
- Classification: Triphenylamine derivatives, Semiconductor synthesis intermediates, Hole transport layer, Perovskite solar cells
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