69386-35-2

Usage

Uses

Used in Optoelectronic Devices:
9H-Carbazole, 2,7-bis(1,1-dimethylethyl)is used as a key component in the development of optoelectronic devices due to its photophysical properties. Its application in this field is primarily for the creation of organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs), where its electronic and optical properties contribute to the performance and efficiency of these devices.
Used in Organic Electronics:
In the field of organic electronics, 9H-Carbazole, 2,7-bis(1,1-dimethylethyl)is utilized as a building block for synthesizing various organic molecules with specific electronic properties. Its stability and tunable characteristics make it a valuable compound for designing and fabricating novel organic electronic materials and devices.
Used in Materials Science:
9H-Carbazole, 2,7-bis(1,1-dimethylethyl)also finds applications in materials science, where its unique properties can be exploited to develop new materials with enhanced performance. Its potential use in this field includes the development of advanced materials for electronic devices, sensors, and other applications that require specific electronic and optical characteristics.

Upstream product

• 70728-97-1 4,4′-di-tert-butyl-[1,1′-biphenyl]-2,2′-diamine 
• 69386-34-1 4,4'-di-tert-butyl-2-nitrobiphenyl 
• 1625-91-8 4,4'-di-tert-butylbiphenyl 

Downstream Products

• 98-51-1 4-tert-butyltoluene 
• 86-74-8 9H-carbazole 

Relevant academic research and scientific papers

Solution spraying OLED (Organic Light-Emitting Diode) material

The invention discloses a series of solution spraying OLED (Organic Light-Emitting Diode) materials. The structures of the materials are shown in formula I. The materials shown in the formula I have the characteristics of being easily soluble in an organic solvent and good in the heat stability, are applied to preparing lighting equipment by modes of fluid manufacturing processes such as print, instilling, coating, printing and the like. An organic light-emitting device prepared by utilizing the materials through a coating method has the characteristics that the power efficiency is good, the material utilization is high, the manufacturing cost of the organic light-emitting device is greatly reduced, material synthesis and purification methods are simple, the materials are suitable for large scale production, and the like, and are ideal selections of light-emitting materials of the organic light-emitting device. The application of organic light emitting diode materials as host materials in an luminescent layer or doped materials or independent light-emitting materials or hole-transport materials or electron transport materials is in the scope of protection. The chemical formula is shown in the description.

Series of carbazole derivatives

The invention discloses a series of OLED materials of carbazole derivatives, a preparation method thereof, and an application of the materials in organic light-emitting diodes. The structure of the materials is represented by formula I. The materials represented by the formula I have the characteristics of good thermal stability, narrow emission peaks, high triplet state energy level and high quantum efficiency. Organic electroluminescent devices made by using the materials have the advantages of good power efficiency and long life, and the synthesis and purification method of the materials is simple and is suitable for large scale production, so the materials are ideal luminescent materials for the organic electroluminescent devices. The invention also discloses an application of the organic electroluminescent diode materials in luminescent layers as a host material or as a doping material or individually as a luminescent material or as a hole transfer material or as an electron transfer material.

CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION

The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal

Dioxomolybdenum(VI)-catalyzed reductive cyclization of nitroaromatics. Synthesis of carbazoles and indoles

Reductive cyclization of nitrobiphenyls and nitrostyrenes to carbazoles and indoles, respectively, is carried out by triphenylphosphine under mild conditions catalyzed by a dichlorodioxomolybdenum(VI) complex. A one-pot procedure for the synthesis of regioselectively functionalized indoles has been developed from commercially available onitrobenzaldehydes and phosphoranes.

Triphenylphosphine-mediated reductive cyclization of 2-nitrobiphenyls: A practical and convenient synthesis of carbazoles

The synthesis of a series of substituted carbazoles from the corresponding 2-nitrobiphenyl derivatives using a novel modification of the Cadogan reaction is described. Cyclization of the 2-nitrobiphenyls was achieved via reductive deoxygenation of the nitro groups using a slight excess of triphenylphosphine in a suitable solvent. We have observed a temperature dependence on the extent of conversion under these conditions, with higher boiling solvents affording higher yields across a range of substrates. The new reaction conditions are very straightforward and convenient to execute, tolerate a broad range of functional groups, and yield carbazole products in the absence of unwanted side products.

SELECTIVE PREPARATION. 32. PHOSPHORIC ACID CATALYZED CYCLIZATION AND DE-TERT-BUTYLATION OF 2,2'-DIAMINO-4,4'-DI-TERT-BUTYLBIPHENYL AFFORDING CARBAZOLE

Heating of 2,2'-diamino-4,4'-di-tert-butyldiphenyl (5) in 85percent H3PO4 afforded carbazole (2).However, use of diethylene glycol as a solvent did not give 2 but 2,7-di-tert-butylcarbazole (7) was formed in 64percent yield.