69386-34-1

Usage

Uses

Used in Liquid Crystal Production:
4,4'-di-tert-butyl-2-nitrobiphenyl is used as a starting material in the production of liquid crystals, which are utilized in various display technologies, such as LCD screens.
Used in Organic Synthesis:
4,4'-di-tert-butyl-2-nitrobiphenyl is used as a starting material in the synthesis of various organic compounds, contributing to the development of new chemical products and materials.
Used in Environmental Research:
As a known environmental pollutant, 4,4'-di-tert-butyl-2-nitrobiphenyl is studied in environmental research to understand its behavior, impact, and potential health hazards due to its toxicity and persistence in the environment.
Used in Regulatory Compliance:
4,4'-di-tert-butyl-2-nitrobiphenyl is listed as a chemical of concern by some regulatory agencies, necessitating its proper handling and disposal to minimize its impact on human health and the environment. This use involves compliance with regulations and guidelines to ensure safety and environmental protection.

Upstream product

• 1625-91-8 4,4'-di-tert-butylbiphenyl 

Downstream Products

• 69386-35-2 3,6-di-tert-butyl-9H-carbazole 
• 70728-92-6 2-amino-4,4'-di-tert-butylbiphenyl 

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

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.