19459-33-7

Basic information

• Product Name: 4-broMo-9H-fluorene
• Synonyms: 4-broMo-9H-fluorene;9H-Fluorene, 4-bromo-
• CAS NO: 19459-33-7
• Molecular Formula: C₁₃H₉Br
• Molecular Weight: 245.11456
• Mol File: 19459-33-7.mol
• Article Data: 5

Chemical Properties

• Melting Point: 165 °C
• Boiling Point: 350.3°Cat760mmHg
• Flash Point: 166.8°C
• Appearance: /
• Density: 1.489g/cm³
• Vapor Pressure: 8.99E-05mmHg at 25°C
• Refractive Index: 1.67
• CAS DataBase Reference: 4-broMo-9H-fluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 4-broMo-9H-fluorene(19459-33-7)
• EPA Substance Registry System: 4-broMo-9H-fluorene(19459-33-7)

Safety Data

• Hazardous Substances Data: 19459-33-7(Hazardous Substances Data)

Usage

General Description

4-bromo-9H-fluorene is a chemical compound that is used in the synthesis of various pharmaceuticals, agrochemicals, and other organic compounds. It is a brominated derivative of fluorene, a polycyclic aromatic hydrocarbon. 4-bromo-9H-fluorene is commonly used in organic chemistry research as a building block for the synthesis of more complex molecules. It is also known for its photophysical properties, making it potentially useful in the development of new materials and technologies. Additionally, 4-bromo-9H-fluorene is a useful reagent in the field of organic synthesis, providing a valuable tool for the construction of carbon-carbon and carbon-heteroatom bonds.

InChI:InChI=1/C13H9Br/c14-12-7-3-5-10-8-9-4-1-2-6-11(9)13(10)12/h1-7H,8H2

Upstream product

• 13029-09-9 2,2'-dibromobiphenyl 
• 1528732-82-2 2-bromo-2'-(cyclohepta-2,4,6-trien-1-yl)-1,1'-biphenyl 
• 500545-92-6 4-Ethoxycarbonylamino-fluoren 
• 91611-97-1 4-bromo-2,7-di(tert-butyl)-9H-fluorene 
• 7083-63-8 4-Aminofluorene 
• 7315-93-7 fluorene-4-carboxylic acid chloride 
• 86-73-7 9H-fluorene 
• 58775-05-6 2,7-di-tert-butyl-9H-fluorene 
• 99514-93-9 4-bromo-fluoren-9-ol 

Downstream Products

• 19462-79-4 4-bromophenanthrene 
• 19459-34-8 4-Brom-fluoren-9-carbonsaeure 
• 4269-17-4 4-bromo-9H-fluorene-9-one 

Relevant articles and documents

Preparation of high purity 4-bromofluorenone method of

The invention relates to a novel method for preparing high-purity 4-bromofluorene. The novel method comprises the following steps: by taking dichloroethane as a solvent and aluminum trichloride as a catalyst, enabling fluorene and 2-chloro-2-methylpropane to be in Friedel-Crafts reaction to obtain a 2,7-di-tert-butyl fluorene crude product; carrying out bromination on the 2,7-di-tert-butyl fluorene crude product by virtue of a high-selectivity bromination reagent to obtain 2,7-di-tert-butyl-4-bromofluorene; removing tertiary butyl from the 2,7-di-tert-butyl-4-bromofluorene by virtue of lewis acid to obtain 4-bromofluorene; re-crystallizing with alcohol at a reaction temperature of 10 DEG C-50 DEG C to obtain 4-bromofluorene. The 4-bromofluorene prepared by the method is high in purity and has GC purity of 99.9%, dibromofluorene content less than 100ppm and good application prospect.

Catalyst components and their use in the polymerization of olefins

Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers specific to the polymerization of propylene to produce isotactic polypropylene and copolymer, specifically an ethylene-propylene copolymer

A Facile Synthesis of 4-Substituted Fluorenes by the Use of a Positional Protective Group

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