139255-17-7

Basic information

• Product Name: N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine
• Synonyms: N,N'-Di(naphthalen-2-yl)-N,N'-diphenyl-benzine;N,N'-Bis(naphthalene-2-yl)-N,N'-bis (phenyl)benzidine;N,N'-Bis(naphthalene-2-yl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine;N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzi ;N,N'-Bis(naphthalene;β- NPB ,N,N'-bis(naphthalen-2-yl)-N,N'-bis(phenyl)-benzidine;N,N′-Bis(naphthalen-2-yl)-N;N4,N4'-Di(naphthalen-2-yl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine
• CAS NO: 139255-17-7
• Molecular Formula: C₄₄H₃₂N₂
• Molecular Weight: 588.73828
• Product Categories: Light yellow powder;oled materials
• Mol File: 139255-17-7.mol
• Article Data: 6

Chemical Properties

• Melting Point: 174~176°C
• Boiling Point: 772.518 °C at 760 mmHg
• Flash Point: 340.846 °C
• Appearance: /
• Density: 1.213
• Storage Temp.: 2-8°C
• PKA: -0.08±0.50(Predicted)
• CAS DataBase Reference: N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine(CAS DataBase Reference)
• NIST Chemistry Reference: N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine(139255-17-7)
• EPA Substance Registry System: N,N'-Bis(naphthalene-2-yl)-N,N'-bis(phenyl)benzidine(139255-17-7)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 139255-17-7(Hazardous Substances Data)

Usage

Uses

Used in organic electronic light emitting devices.

Upstream product

• 92-86-4 4-(4-bromophenyl)bromobenzene 
• 135-88-6 N-Phenyl-2-naphthylamine 
• 3001-15-8 4,4'-diiodobiphenyl 

Relevant articles and documents

Clean synthesis of triarylamines: Buchwald-Hartwig reaction in water with amphiphilic resin-supported palladium complexes

Catalytic aromatic amination was achieved in water under heterogeneous conditions by the use of palladium complexes anchored to the amphiphilic PS-PEG resin with little palladium leaching to provide a green and clean (metal-uncontaminated) protocol for the preparation of triarylamines, including the optoelectronically active N,N,N′,N′-tetraaryl-1,1′- biphenyl-4,4′-diamines (TPDs).

Diazabutadiene: a simple and efficient ligand for copper-catalyzed N-arylation of aromatic amines

Diazabutadienes (DABs) were chosen as ancillary ligands in the Cu-catalyzed C-N coupling reaction for the synthesis of triarylamines. A combination of CuI/DAB (1) [1: N,N′-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene] was found to be an efficient catalyst system for N-arylation of diarylamines and anilines with aryl iodides, affording the desired products in good to excellent yields.

Triarylamine dimer derivative having amorphous phase

A triarylamine dimer derivative is represented by the following chemical formula [1] ???(in the chemical formula [1]: -Ar1, -Ar2, -Ar3 and -Ar4 are aryl groups being to have a substitutional group respectively, -R1 and -R2 are same or different to each other and one thereof is selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxyl group and a halogen atom; m and n are from 0 to 4; and with a proviso that -Ar1 and -Ar2, -Ar3 and -Ar4 are being to bind respectively to compose a cyclic structure group having a nitrogen atom) having an amorphous phase indicated by spectrum of powder X-ray diffractometry. The triarylamine dimer derivative is used for a charge transport material, an electrophotographic photosensitive conductor having thereof, an electroluminescence elemental device having a hole transport material thereof.