481-91-4

Basic information

• Product Name: naphthidine
• Synonyms: 1,1'-binaphthyl-4,4'-ylenediamine;1,1'-Binaphthalene-4,4'-diamine;4,4'-Diamino-1,1'-binaphthalene;[4-(4-amino-1-naphthyl)-1-naphthyl]amine;4-(4-aminonaphthalen-1-yl)naphthalen-1-amine;4-(4-azanylnaphthalen-1-yl)naphthalen-1-amine
• CAS NO: 481-91-4
• Molecular Formula: C₂₀H₁₆N₂
• Molecular Weight: 284.35
• EINECS: 207-574-3
• Mol File: 481-91-4.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: naphthidine(CAS DataBase Reference)
• NIST Chemistry Reference: naphthidine(481-91-4)
• EPA Substance Registry System: naphthidine(481-91-4)

Safety Data

• Hazardous Substances Data: 481-91-4(Hazardous Substances Data)

Usage

General Description

Naphthidine is a chemical compound with the molecular formula C10H7N. It is a white to light brown crystalline solid that is soluble in organic solvents but insoluble in water. Naphthidine is mainly used as a precursor in the synthesis of dyes and pigments, and also in the production of pharmaceuticals and other organic compounds. It is a potentially hazardous substance and can cause irritation to the skin, eyes, and respiratory system upon exposure. Naphthidine has also been identified as a potential carcinogen and mutagen, and therefore proper safety precautions and handling procedures must be followed when working with this chemical.

Upstream product

• 134-32-7 1-amino-naphthalene 
• 64-17-5 ethanol 
• 634-44-6 1,2-di-1-naphthalenyl-hydrazine 
• 487-10-5 1,2-di(naphthalen-1-yl)diazene 
• 605-84-5 di-1-naphthalenyl-diazene, 1-oxide 
• 7664-93-9 sulfuric acid 
• 2243-55-2 1-(1-naphthyl)hydrazine 
• 64-19-7 acetic acid 
• 7647-01-0 hydrogenchloride 
• 6141-93-1 (E)-di-[1]naphthyl-diazene 
• 41791-46-2 [1]naphthylamine; hydrogen sulfate 
• 15719-64-9 methylammonium carbonate 
• 481-91-4 4,4'-diamino-1,1'-binaphthyl 
• 6921-40-0 1-azidonaphthalene 

Downstream Products

• 604-53-5 1,1'-bisnaphthalene 
• 5796-93-0 perylene-3,10-dione 
• 481-91-4 (+)-[1,1']binaphthyl-4,4'-diyldiamine 
• 481-91-4 (-)-[1,1']binaphthyl-4,4'-diyldiamine 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 130-15-4 [1,4]naphthoquinone 
• 1246261-65-3 4,4'-bis(9-(p-fluorophenyl)-9H-carbazol-3-yl)-1,1'-binaphthyl 
• 1238379-35-5 4,4'-bis[4-(diphenylamino)phenyl]-1,1'-binaphthyl 
• 123524-53-8 1,1'-binaphthyl-4,4'-dicarboxylic acid 

Relevant articles and documents

Aerobic oxidative homocoupling of aryl amines using heterogeneous rhodium catalysts

The first heterogeneous catalyzed oxidative coupling of aryl amines is reported. Aryl amines were dimerized at room temperature under air using a heterogeneous Rh/C catalyst in the presence of acids. By choosing a suitable acidic solvent, biaryl compounds and carbazoles were selectively prepared in good yields. This reaction is operationally simple and provides an effi cient synthetic methodology for the preparation of biaryl diamines via oxidative C - H activation.

OXIDATIVE DIMERISATION OF ARYLAMIDO COMPLEXES OF PLATINUM: X-RAY STRUCTURE OF PF6

The phenyl groups of two molecules of the phenylamido complex are oxidatively coupled, in the para position, by AgPF6 to give the dicationic complex 2 which can be deprotonated to the paramagnetic monocationic complex PF6.This has been examined by X-ray crystallography (orthorombic, space group Pnnm, R = 0.024 for 2 854 diffractometer measured observed reflections).The structure shows a bridging benzidine group which is strictly planar with marked quinonoid character within the arene rings .The mononuclear p-tolyl complex undergoes a similar coupling in the ortho position, but the 1-naphthyl complex gives a neutral coupled complex beacause of the much reduced conjugation in the twisted 1,1'-binaphtyl system.