374592-88-8

Basic information

• Product Name: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine
• Synonyms: N,N'-Di-1-naphthyl-N,N'-di-2-naphthylbenzidine;N,N'-Di-1-naphthyl-N,N'-di-2-naphthylbenzidine;N,N'-Di(1-naphthyl)-N,N'-di(2-naphthyl)-4,4'-biphenyldiamine;N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine;α,β-TNB,N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-;N,N'-di(naphthalenyl)-N,N'-di(naphthalen-2-yl)-benzidine
• CAS NO: 374592-88-8
• Molecular Formula: C52H36N2
• Molecular Weight: 688.86
• Product Categories: OLED materrials
• Mol File: 374592-88-8.mol
• Article Data: 2

Chemical Properties

• Melting Point: 134℃
• Appearance: /
• Density: 1.244
• PKA: -2.77±0.30(Predicted)
• CAS DataBase Reference: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine(CAS DataBase Reference)
• NIST Chemistry Reference: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine(374592-88-8)
• EPA Substance Registry System: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine(374592-88-8)

Safety Data

• Hazardous Substances Data: 374592-88-8(Hazardous Substances Data)

Usage

General Description

N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine, also known as 2,2',6,6'-tetra(1-naphthyl)-4,4'-diaminobiphenyl (TNDB), is a chemical compound consisting of two 1-naphthyl and two 2-naphthyl groups linked to a biphenyl core, with diamine groups at the 4,4' positions. N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine is commonly used as a charge transport material in organic electroluminescent devices and as a hole injection layer in organic light-emitting diodes. TNDB exhibits high thermal stability, good hole transport properties, and a low ionization potential, making it a useful material for improving the efficiency and stability of organic electronic devices. Additionally, it has potential applications in organic photovoltaic cells and organic thin-film transistors due to its favorable electronic and optical properties.

Upstream product

• 3001-15-8 4,4'-diiodobiphenyl 
• 4669-06-1 N-naphthyl-N-2-naphthylamine 

Relevant articles and documents

PROCESS FOR FORMING AN AROMATIC AMINE COMPOUND

A process for forming an aromatic amine product comprises the steps of (a) combining an aromatic primary or secondary initial amine with an aromatic halide compound in the presence of a palladium complex and a phosphine compound catalyst to form a mixture; (b) heating the mixture to a first temperature of at least 60°C; (c) adding a base material to the heated mixture; and (d) maintaining the temperature of the mixture at or above the first temperature for a period of time sufficient to form as a product an aromatic substituted form of the aromatic primary or secondary initial amine. The process provides products of high purity in good yields.