1785-04-2

Basic information

• Product Name: 2,7-dibromo-4-nitro-9H-fluoren-9-one
• CAS NO: 1785-04-2
• Molecular Formula: C₁₃H₅Br₂NO₃
• Molecular Weight: 382.9917
• Mol File: 1785-04-2.mol

Chemical Properties

• Boiling Point: 519.8°C at 760 mmHg
• Flash Point: 268.2°C
• Density: 2.025g/cm³
• Vapor Pressure: 6.59E-11mmHg at 25°C
• Refractive Index: 1.735
• CAS DataBase Reference: 2,7-dibromo-4-nitro-9H-fluoren-9-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,7-dibromo-4-nitro-9H-fluoren-9-one(1785-04-2)
• EPA Substance Registry System: 2,7-dibromo-4-nitro-9H-fluoren-9-one(1785-04-2)

Safety Data

• Hazardous Substances Data: 1785-04-2(Hazardous Substances Data)

Usage

Uses

Used in Fluorescent Labeling Applications:
2,7-dibromo-4-nitro-9H-fluoren-9-one is used as a fluorescent labeling reagent for biological applications. Its fluorescent properties allow for the visualization and tracking of biomolecules in various research and diagnostic settings.
Used in Organic Synthesis:
2,7-dibromo-4-nitro-9H-fluoren-9-one is also used in the synthesis of various organic compounds. Its unique structure and functional groups make it a valuable intermediate in the preparation of a wide range of chemical products.
Used in Pharmaceutical Industry:
2,7-dibromo-4-nitro-9H-fluoren-9-one plays a significant role in the pharmaceutical industry, where it is used for the preparation of novel drugs. Its structural features contribute to the development of new therapeutic agents with potential applications in various medical fields.
Used in Drug Development:
The presence of bromine and nitro groups in 2,7-dibromo-4-nitro-9H-fluoren-9-one's structure makes it an important building block for the development of new drugs and materials. These functional groups can be further modified or used as starting points for the synthesis of more complex molecules with specific therapeutic properties.
Safety Precautions:
It is important to handle 2,7-dibromo-4-nitro-9H-fluoren-9-one with caution due to its potential health hazards. Proper safety protocols should be followed when working with 2,7-dibromo-4-nitro-9H-fluoren-9-one to minimize risks and ensure the safety of researchers and the environment.

Upstream product

• 14348-75-5 2,7-dibromofluorene-9-one 
• 16433-88-8 2,7-dibromo-9H-fluorene 
• 86-73-7 9H-fluorene 
• 1785-07-5 2,7-dibromo-4-nitro-9H-fluorene 

Downstream Products

• 1785-11-1 4-Amino-2.7-dibrom-9-oxo-fluoren 

Relevant articles and documents

Aerobic oxidation of 9H-fluorenes to 9-fluorenones using mono-/multilayer graphene-supported alkaline catalyst

The synthesis of 9-fluorenone derivatives has been achieved in high yield and with high purity by aerobic oxidation of 9H-fluorenes at room temperature in the presence of a graphene-supported KOH composite that acts as a catalyst in N,N-dimethylformamide. The new protocol involves very simple work-up procedures, and the solvent and the catalyst can be recycled and reused. A scaled-up preparative study employing this method was also conducted and showed its advantages of being both cost-effective and environmentally friendly, and has potential for application in industrial processes. Copyright

Highly efficient synthesis of 9-fluorenones from 9H-fluorenes by air oxidation

9-Fluorenones substituted with nitro, halogen, or alkyl groups can be easily obtained in high yield and purity by aerobic oxidation of 9H-fluorenes under ambient conditions in the presence of KOH in THF.

Improved, highly efficient, and green synthesis of bromofluorenones and nitrofluorenones in water

A series of bromo-, nitro-, and bromonitrofluorenones were synthesized chemo-and regioselectively in 90-98% yield via electrophilic aromatic bromination and nitration under mild conditions using water as the sole solvent. These synthetic methods involve simple workup procedures and use only minimal amounts of organic solvents during the purification of products. The newly developed methods have the advantages of being cost-effective and environmentally friendly and could potentially be used for the large-scale synthesis of fluorenone derivatives. Copyright Taylor & Francis Group, LLC.

Biphenyl- and fluorenyl-based potential molecular electronic devices

New potential molecular electronics devices have been synthesized based on our knowledge of systems that we previously studied. Research has shown that simple molecular systems demonstrate negative differential resistance (NDR) and memory characteristics. The new molecules rely primarily on the redox properties of the compounds to improve upon the solid-state characteristics already observed. Electrochemical tests have been performed in order to evaluate the redox properties with the hope that the electrochemical results can be used as a predictive tool to evaluate the usefulness of those compounds in device configurations.