1-bromo-9H-fluoren-9-one

1-bromo-9H-fluoren-9-one is a high-purity oled-materials supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

1. Key Intermediate in Organic Synthesis

1-Bromo-9H-fluoren-9-one is widely used as a synthetic intermediate in preparing advanced organic molecules:

The bromine allows for palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck, Sonogashira), making it highly useful in:

Introducing aryl, heteroaryl, or alkynyl groups

Building conjugated systems and π-extended molecules

2. Material Science and Organic Electronics

Precursor for OLED and OPV materials:

Its fluorenone core is a commonly used electron-accepting unit in:

OLED emitters

Organic photovoltaics (OPVs)

Donor–acceptor (D–A) materials

Used in design of charge-transport materials:

The carbonyl group provides electron affinity, while the bromo position allows tuning of electronic bandgaps.

3. Synthesis of Ligands and Functional Molecules

Used to create customized ligands for metal complexes.

Acts as a scaffold in designing sensor molecules and macrocyclic hosts.

4. Building Block for Fluorescent and Redox-Active Compounds

Fluorenone derivatives, including 1-bromo-9H-fluoren-9-one, are widely used in:

Fluorescent probes

Photoactive compounds

Electrochromic materials

Its carbonyl and aromatic system contributes to tunable photophysical and electrochemical properties.

1. Versatile Functional Groups

The bromine atom offers a reactive site for cross-coupling.

The ketone provides polarity and electron-withdrawing capability, facilitating:

Ring functionalization

Diels-Alder reactions

Reductions to alcohols

2. Ideal for Conjugated Systems

The rigid planar structure of fluorenone allows:

Good π-π stacking in solid-state materials

Efficient charge transfer and transport, especially in optoelectronic applications

3. Well-Defined Synthetic Handle

The bromine at position 1 is ideal for regioselective reactions, offering better control in designing asymmetric or directional molecules.

4. Thermal and Chemical Stability

The aromatic fluorenone skeleton is thermally stable and chemically robust, making it suitable for high-performance polymers and stable dye systems.

1-Bromo-9H-fluoren-9-one (CAS 36804-63-4) is a highly valuable intermediate used in organic synthesis, optoelectronics, and functional materials research. Its dual functionality - a reactive bromo group and a carbonyl-bearing fluorenone core - makes it especially suitable for building conjugated systems, semiconducting materials, and fluorescent compounds. With excellent reactivity and stability, it plays an important role in advancing materials science, pharmaceutical R&D, and synthetic organic chemistry.

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