5043-54-9

Usage

Uses

Used in Organic Synthesis:
9H-fluorene-2,7-diol is utilized as a key intermediate in the synthesis of a variety of organic compounds due to its reactive dihydroxy groups, which can participate in numerous chemical reactions to form a wide range of products.
Used in Pharmaceutical Industry:
In the pharmaceutical field, 9H-fluorene-2,7-diol is used as a building block for the development of new drugs. Its chemical properties allow for the creation of molecules with potential therapeutic applications, including those that may target specific diseases or conditions.
Used in Materials Science:
9H-fluorene-2,7-diol is employed as a component in the development of new materials with unique properties. Its incorporation into polymers or other materials can enhance their characteristics, such as stability, solubility, or conductivity, making them suitable for various applications.
Used in Organic Chemistry Research:
As a compound with interesting chemical properties, 9H-fluorene-2,7-diol is used in research to explore new reactions and mechanisms, contributing to the advancement of organic chemistry.
Used for Antioxidant Properties:
9H-fluorene-2,7-diol is studied for its antioxidant properties, which may have potential health benefits. It could be used as an antioxidant in various applications, such as in the food industry to extend the shelf life of products or in the pharmaceutical industry for health supplements.
Each of these uses highlights the diverse applications of 9H-fluorene-2,7-diol, leveraging its chemical characteristics to contribute to different industries and scientific research.

Upstream product

• 42523-30-8 2,7-dimethoxy-9H-fluorene 
• 13354-15-9 9H-fluorene-2,7-disulfonic acid dipotassium salt 
• 86-73-7 9H-fluorene 
• 1352172-39-4 2,7-dihydroxy-9-fluorenol 
• 42523-25-1 4,4'-dimethoxy-[1,1'-biphenyl]-2-carboxylic acid 
• 42523-28-4 2,7-dimethoxy-9H-fluorenon-9-one 
• 696-62-8 para-iodoanisole 
• 53197-57-2 4,4'-dihydroxy-[1,1'-biphenyl]-2-carboxylic acid 
• 42523-29-5 2,7-dihydroxy-9H-fluoren-9-one 
• 35450-36-3 methyl 2-bromo-5-methoxybenzoate 

Downstream Products

• 126070-99-3 2,7-Bis-<2-(Diethylamino)ethoxy>-9H-fluoren 

Relevant academic research and scientific papers

Towards the Highly Efficient Synthesis and Selective Methylation of C(sp3)-Bridged [6]Cycloparaphenylenes from Fluoren[3]arenes

An approach to the highly efficient synthesis of C(sp3)-bridged [6]cycloparaphenylenes (C[6]CPPs) from fluoren[3]arenes (F[3]As) was developed. Consequently, F[3]As as a new kind of macrocyclic arenes were synthesized. Followed by the demethylation, triflation and intramolecular aryl–aryl coupling reactions, C[6]CPPs were then conveniently obtained. Interestingly, C[6]CPPs could be selectively methylated to produce their fully outer-methyl-substituted derivatives. The crystal structures showed the hydroxyl-substituted F[3]As had bowl-shaped conformations, and the C[6]CPPs exhibited rigid belt-shaped structures with deep cavities. Moreover, C[6]CPPs exhibited high HOMO energies and narrow energy gaps. An unclosed belt was further obtained, and it not only showed a similar narrow energy gap to those of the aromatic belts, but also displayed strong fluorescence property, which can play a vital role in the design and synthesis of new aromatic belts.

Photodecaging from 9-substituted 2,7-dihydroxy and dimethoxyfluorenes: Competition between heterolytic and homolytic pathways

2,7-Dihydroxy-9-fluorenol (9), 2,7-dimethoxy-9-fluorenol (10), and 2,7-dimethoxy-9-acetoxyfluorene (11) were prepared and their photochemistry was studied in methanol and aqueous methanol solution in the hopes of observing efficient expulsion of the substituents positioned at the 9-position. For all three compounds, the primary photoproducts were 2,7-disubstituted-9-fluorenes and 2,7-disubstituted-9-methoxyfluorenes. A mechanism of reaction is proposed for production of these products, and involves competing homolytic and heterolytic pathways that produce radical and carbocation intermediates. Reaction quantum yields (for substrate disappearance) ranged between 0.21 and 0.31.

Study of Electrochromism of Methoxyfluorene Compounds

The electrochemical and electrochromic properties of a variety of polysubstituted fluorene compounds have been studied.The 2,7- and 2,3-dimethoxy, 2,3,6,7-tetramethoxy, and 2,3,4,5,6,7-hexamethoxyfluorenes are highly reversible electrochromic materials.One-electron oxidation of these materials yields deeply colored, stable radical cations.The structure-property relationships observed for the electrochemical and absorption behavior of these materials are discussed.