141752-82-1

Basic information

• Product Name: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine
• Synonyms: N,N,N',N'-tetra-naphthalen-2-yl-benzidine;N,N,N',N'-Tetra-2-naphthalnyl-[1,1'-biphenyl]-4,4'-diaMine;N,N,N′,N′-Tetrakis(2-naphthyl)benzidine;N,N,N',N'-Tetra(2-naphthyl)benzidine;N,N,N',N'-TETRAKIS(NAPHTH-2-YL)BENZIDINE;N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine;N,N,N',N'-Tetra(2-na;TNB,N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diaMine
• CAS NO: 141752-82-1
• Molecular Formula: C52H36N2
• Molecular Weight: 688.86
• Product Categories: electronic;White powder
• Mol File: 141752-82-1.mol
• Article Data: 1

Chemical Properties

• Melting Point: 243.2-246.1°C
• Appearance: /
• Density: 1.245 g/cm³
• Storage Temp.: 2-8°C
• PKA: -2.77±0.30(Predicted)
• CAS DataBase Reference: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine(CAS DataBase Reference)
• NIST Chemistry Reference: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine(141752-82-1)
• EPA Substance Registry System: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine(141752-82-1)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 141752-82-1(Hazardous Substances Data)

Usage

Uses

This material is used as a high performance host material for OLED devices showing increased efficiency (external electroluminescence efficiency of ~12%).

Upstream product

• 580-13-2 2-bromonaphthalene 
• 92-87-5 p,p'-diaminobiphenyl 

Relevant articles and documents

Effects of solvent and base on the palladium-catalyzed amination: PdCl 2(Ph3P)2/Ph3P-catalyzed selective arylation of primary anilines with aryl bromides

A readily accessible catalytic system, PdCl2(Ph 3P)2/Ph3P, was developed for the selective arylation of primary anilines with aryl bromides. The strong influence of solvents and bases on the catalytic activity was observed. In refluxing o-xylene, triphenylphosphine shows high efficiency for Pd-catalyzed intermolecular amination reactions. By changing the bases, mono- and diarylation of primary amines could be selectively achieved in high yields. Moreover, the catalytic system showed good toleration for the steric hindrance of anilines. A series of N,N,N′,N′-tetraaryl-1,1′-biphenyl-4,4′- diamines, important intermediates of OLED hole transport materials, were synthesized facilely via coupling reactions between 4,4′-diaminobiphenyls and aryl bromides.