113933-91-8

Upstream product

• 16433-88-8 2,7-dibromo-9H-fluorene 
• 122-39-4 diphenylamine 
• 14348-75-5 2,7-dibromofluorene-9-one 
• 155926-52-6 N,N,N',N'-tetraphenyl-9H-fluorene-2,7-diamine 
• 86-73-7 9H-fluorene 

Downstream Products

• 261517-63-9 C₇₄H₅₂N₄O 

Relevant academic research and scientific papers

Synthesis and optoelectronic properties of chemically modified bi-fluorenylidenes

The development of new light harvesting materials is a key issue for the progress of the research on organic & hybrid photovoltaics. Here, we report a new class of organic sensitizers based on the bi-fluorenylidene moiety as π-linker within the donor-π-linker-acceptor (D-π-A) scheme. The new dyes are endowed with electron donor and electron acceptor units at strategic positions in order to improve their electronic and light-harvesting properties. The comprehensive study of these compounds through the use of different experimental and theoretical techniques, provides an in-depth understanding of their electronic and photophysical properties, and reveal their interest as photovoltaic materials.

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

PL Quenching of Poly(3-hexylthiophene) by 2,2′,7,7′-Tetradiphenylamino-9,9′-Bifluorenylidene

2,2′,7,7′-Tetradiphenylamino-9,9′-bifluorenylidene, TDPABF, was synthesized by reductive dimerization using Lawesson's reagent. It is soluble in common organic solvents such as dichloromethane, chloroform, and 1,2-dichlorobenzene. Its synthesis was confir

Fused ring compound as well as preparation method and application thereof as well as CO-host material Light-emitting composition, light-emitting device, lighting apparatus, and display apparatus

Disclosed are fused ring compounds having a structure represented by Formula 1 or Formula 2, a method for preparing the same, a co-host material containing the condensed cyclic compound, a light emitting composition, a light emitting device and containing

Thermal activation delayed fluorescence material and preparation method and application thereof

The invention provides a thermal activation delayed fluorescence material as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis. The material provided by the invention has a structure as shown in

Structure unit containing carbazole compounds and methods for their preparation and use

The invention discloses a compound containing a pyrazole structural unit, a preparation method and an application. A structural general formula of the compound containing the spirofluorene structural unit is shown as a formula I. The nuclear magnetic dete

Spirocycle-incorporated triphenylamine derivatives as an advanced organic electroluminescent material

For multi-color organic electroluminescent (EL) devices, new triphenylamine compounds attached to a spirocyclic framework were prepared from 2,7-bis(diphenylamino)-9-fluorenone. These amines showed exceedingly high Tg's or thermal stability as well as goo

Preparation of 2,7-diaminofluorenone derivatives by palladium catalyzed amination [1]

A convenient synthesis of tert-2,7-diaminofluorenonens 3a-3e via palladium catalyzed reaction of secondary amines with 2,7-dibromofluorene and subsequent oxidation is described. In the cases were non-cyclic secondary amines are applied, the aniline derivatives 4c-4e are formed as side products by a dehydrohalogenation reaction.