4627-17-2

Usage

Uses

Used in Organic Synthesis:
2,3-dimethyl-9H-fluoren-9-one is used as a reagent in organic synthesis for the preparation of various pharmaceuticals, dyes, and other organic compounds. Its versatility in creating complex molecules with specific functional groups and properties makes it a valuable component in the synthesis of a wide range of chemical products.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 2,3-dimethyl-9H-fluoren-9-one is used as a key intermediate in the synthesis of various drugs. Its unique structure enables the development of new pharmaceutical compounds with improved therapeutic properties and efficacy.
Used in Dye Industry:
2,3-dimethyl-9H-fluoren-9-one is used as a building block in the production of dyes, particularly those with bright yellow color. Its chemical properties allow for the creation of dyes with specific characteristics, such as improved stability and colorfastness.
Used in Optoelectronic Devices:
2,3-dimethyl-9H-fluoren-9-one has been studied for its potential use in optoelectronic devices due to its unique optical and electronic properties. Its application in this field could lead to the development of advanced optoelectronic devices with improved performance and efficiency.
Used in Photodynamic Therapy for Cancer Treatment:
2,3-dimethyl-9H-fluoren-9-one has been investigated as a photochemical sensitizer in photodynamic therapy for cancer treatment. Its ability to absorb light and generate reactive oxygen species makes it a promising candidate for the development of new cancer therapies that can selectively target and destroy cancer cells while minimizing damage to healthy tissues.

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Relevant academic research and scientific papers

Synthesis of Polysubstituted Benzoic Esters from 1,2-Dihydropyridines and Its Application to the Synthesis of Fluorenones

A convenient, instrumentally simple, and efficient methodology to transform 1,2-dihydropyridines into benzoic esters is described. The generated multisubstituted benzoic esters feature different topologies spanning from simple aromatic rings to fused benz

Palladium-catalyzed synthesis of fluoreones from bis(2-bromophenyl)methanols

A palladium-catalyzed synthesis method of fluorenones has been developed. A variety of bis(2-bromophenyl)methanols could undergo the reaction smoothly in the presence of Pd(OAc)2, affording a series of fluorenones in moderate to good yields (two steps). Mechanistic studies reveal that the reaction might be triggered by oxidation of alcohol followed by intramolecular reductive coupling.

One-Pot Palladium(II)-Catalyzed Synthesis of Fluorenones via Decarboxylative Cyclization

A one-pot palladium-catalyzed synthesis of fluoronones via decarboxylative cyclization is reported. This protocol offers good yields and tolerates a broad range of functional groups. Based on the extensive experimental data, we propose a plausible decarboxylative insertion mechanism.

Synthesis of fluorenones by using Pd(ii)/Mg-La mixed oxide catalyst

Palladium(ii)/magnesium-lanthanum mixed oxide (Pd(ii)/Mg-La mixed oxide) catalyst was used in the dehydrogenative cyclization of benzophenones to afford fluorenones. This protocol represents a direct and facile approach to accessing a variety of fluorenone derivatives by means of C-H activation under heterogeneous conditions. The catalyst was recovered by centrifugation and used for three consecutive cycles with nearly consistent activity and selectivity.

Synthesis of fluorenone and anthraquinone derivatives from aryl- and aroyl-substituted propiolates

Fluorenone derivatives were generated from aryl-substituted propiolates via a cobalt-catalyzed Diels-Alder reaction/DDQ-oxidation and Friedel-Crafts-type cyclization. Several functional groups are tolerated, and good to excellent overall yields (up to 89%) could be achieved. For the synthesis of anthraquinone derivatives, aroyl-substituted propiolates were applied in a zinc iodide catalyzed Diels-Alder reaction with 1,3-dienes. The subsequent DDQ oxidation and Friedel-Crafts-type cyclization led to symmetrical as well as some unsymmetrical anthraquinones in good to excellent yields of up to 87% over the three-step reaction sequence.

Synthesis of fluorenone derivatives through Pd-catalyzed dehydrogenative cyclization

Palladium-catalyzed dual C-H functionalization of benzophenones to form fluorenones by oxidative dehydrogenative cyclization is reported. This method provides a concise and effective route toward the synthesis of fluorenone derivatives, which shows outstanding functional group compatibility.

InCl3-catalyzed synthesis of 1,2-dimetallic compounds by direct insertion of aluminum or zinc powder

In-sertion of metal: Catalytic amounts of InCl3 allow the insertion of aluminum and zinc into aromatic 1,2-dibromides or 1,2-bromotriflates (see scheme). These 1,2-dimetallic species can undergo Cu or Pd-catalyzed acylations, allylations, or cross-couplings. Copyright

Efficient synthesis of fluoren-9-ones by the palladium-catalyzed annulation of arynes by 2-haloarenecarboxaldehydes

(Chemical Equation Presented) Fluoren-9-ones and derivatives are readily prepared in good yields by the annulation of in situ generated arynes by 2-haloarenecarboxaldehydes in the presence of a palladium catalyst.

Palladium-catalyzed annulation of arynes by 2-halobenzaldehydes: Synthesis of fluoren-9-ones

(Chemical Equation Presented) Arynes, generated in situ from 2-(trimethylsilyl)aryl triflates and CsF, undergo annulation by o-haloarenecarboxaldehydes in the presence of a Pd catalyst, providing a useful new method for the synthesis of fluoren-9-ones in good yields.

A simple approach to the synthesis of fluoren-9-ones

Cyclohexene-1-Carboxylic acid (I) undergoes reaction with various aromatic substrates (2a-i) in presence of polyphosphoric acid (PPA) at 100°C to give cis-1,2,3,4,4a,9a-hexahydrofluoren-9-ones (3a-i) in good yield. Dehydrogenation of (3a-i) with selenium powder afforded corresponding fluoren-9-ones (4a-i) in high yield.