2969-68-8

Basic information

• Product Name: 2,4-difluoro-9H-fluoren-9-one
• CAS NO: 2969-68-8
• Molecular Formula: C₁₃H₆F₂O
• Molecular Weight: 216.1829
• Mol File: 2969-68-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 346.4°C at 760 mmHg
• Flash Point: 132.7°C
• Density: 1.41g/cm³
• Vapor Pressure: 5.79E-05mmHg at 25°C
• Refractive Index: 1.621
• CAS DataBase Reference: 2,4-difluoro-9H-fluoren-9-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-difluoro-9H-fluoren-9-one(2969-68-8)
• EPA Substance Registry System: 2,4-difluoro-9H-fluoren-9-one(2969-68-8)

Safety Data

• Hazardous Substances Data: 2969-68-8(Hazardous Substances Data)

Usage

General Description

2,4-difluoro-9H-fluoren-9-one is a chemical compound with the molecular formula C13H7F2O. It is a fluorenone derivative, which consists of a fluorene core with two fluorine atoms and a ketone group attached to it. 2,4-difluoro-9H-fluoren-9-one is a yellow needle-like crystalline solid that is sparingly soluble in water but soluble in organic solvents. It is commonly used as a building block in organic synthesis and as a precursor in the production of various pharmaceuticals and agrochemicals. Additionally, 2,4-difluoro-9H-fluoren-9-one has potential applications in materials science and as a fluorescent probe in biological studies. Its unique structure and properties make it a versatile compound with a range of potential uses in various fields.

Upstream product

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Downstream Products

• 3127-59-1 2,4-Difluor-7-nitro-9-oxo-fluoren 
• 2969-67-7 2,5,7-trifluorofluorenone 
• 2969-69-9 2-Amino-5.7-difluor-9-oxo-fluoren 

Relevant articles and documents

Fluorene derivative and electronic device

The invention provides a fluorene derivative and an electronic device. By introducing a fluorene rigid structure into the fluorene derivative, the obtained fluorene derivative has an excellent film-forming property and high thermal stability, and can be used for preparing an organic light-emitting device, an organic field effect transistor and an organic solar cell. In addition, the fluorene derivative can be used as a constituent material of a hole injection layer, a hole transport layer, a light emitting layer, an electron blocking layer, a hole blocking layer or an electron transport layer,and can reduce the driving voltage, improve the efficiency and the brightness, prolong the service life and the like. In addition, the preparation method of the fluorene derivative is simple, raw materials are easily available, and the industrial development requirements can be met.

A General Synthesis of Substituted Fluorenones and Azafluorenones

Twenty-one variously substituted fluorenones and azafluorenones have been synthesized via photochemical Pschorr cyclizations of 2-diazoniodiaryl ketones as the key ring-forming step.Direct, (bipy)3RuII-, or (bipy)3RuII/CuII-photosensitized conditions were used, depending on the system to be cyclized.Where selectivities were possible in the ring closure, the isomer ratios obtained were in accord with an aryl radical as the reactive intermediate.The precursor aminodiaryl ketones were obtained from the sequence ortho lithiation of an arylpivalamide, reaction withan aryl aldehyde to give a 2-pivalamidodiarylcarbinol, oxidation to give a 2-pivalamidodiaryl ketone, and hydrolysis to give the 2-aminodiaryl ketone.