31656-49-2

Basic information

• Product Name: naphthalene-2,6-dicarbonitrile
• Synonyms: naphthalene-2,6-dicarbonitrile
• CAS NO: 31656-49-2
• Molecular Formula: C₁₂H₆N₂
• Molecular Weight: 178.18944
• EINECS: -0
• Mol File: 31656-49-2.mol

Chemical Properties

• Melting Point: >300 °C
• Boiling Point: 391.6±15.0 °C(Predicted)
• Appearance: /
• Density: 1.23±0.1 g/cm3(Predicted)
• CAS DataBase Reference: naphthalene-2,6-dicarbonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: naphthalene-2,6-dicarbonitrile(31656-49-2)
• EPA Substance Registry System: naphthalene-2,6-dicarbonitrile(31656-49-2)

Safety Data

• Hazardous Substances Data: 31656-49-2(Hazardous Substances Data)

Upstream product

• 10442-39-4 tetra-n-butylammonium cyanide 
• 74-90-8 hydrogen cyanide 
• 151-50-8 potassium cyanide 
• 13720-06-4 2,6-dibromonaphthalene 
• 46711-49-3 2,6-naphthalenedicarboxamide 
• 1141-38-4 2,6-Naphthalenedicarboxylic acid 

Downstream Products

• 5159-60-4 6-cyano-naphthalene-2-carboxylic acid 
• 1141-38-4 2,6-Naphthalenedicarboxylic acid 
• 5060-65-1 2,6-naphthalenedicarbaldehyde 

Relevant articles and documents

Intermolecular coupling and intramolecular cyclization of aryl nitriles on Au(111)

The on-surface dimerization reaction of an organic nitrile on Au(111) is reported. The formation of the product, which contains five newly formed σ-bonds and a diazapyrene core structure, was investigated and characterized by scanning tunneling microscopy. Experimental and computational studies of reference compounds support our findings.

Corresponding amine nitrile and method of manufacturing thereof

The invention relates to a preparation method of nitrile. Compared with the prior art, the preparation method has the characteristics of obvious reduction of the usage amount of ammonia sources, low environmental pressure, low energy consumption, low production cost, high purity and yields of nitrile products, and the like, and can be used for obtaining nitrile with a more complex structure. The invention also relates to a method for preparing corresponding amine with nitrile.

Corresponding amine nitrile and method of manufacturing thereof

The present invention relates to a nitrile manufacturing method, which has characteristics of significantly-reduced ammonia source consumption, low environmental pressure, low energy consumption, low production cost, high nitrile purity, high nitrile yield and the like compared with the method in the prior art, wherein nitrile having a complicated structure can be obtained through the method. The present invention further relates to a method for producing a corresponding amine from the nitrile.

Corresponding amine nitrile and method of manufacturing thereof (by machine translation)

The invention relates to a method of manufacturing one kind of nitrile, compared with the prior art, has significantly reduced the amount of ammonia, the environmental pressure of the small, low energy consumption, low production cost, nitrile product purity and yield and the like, and can obtain more complex structure of the nitriles. The invention also relates to the corresponding amine by the nitrile manufacture method. (by machine translation)

Dicyanoaromatic radical anions as mixed valence species

The reduction of nine symmetric dicyanoaromatic radical anions by sodium amalgam in the presence of cryptand[2.2.2] was studied using cyclic voltammetry and using optical and electron paramagnetic resonance (EPR) spectroscopies in two aprotic solvents. Al

SRN1 SYNTHESES OF BIS(PHENYLTHIO)- AND DICYANO-NAPHTHALENES VIA DIAZOSULFIDES

The reactions of bromonaphthalenediazonium tetrafluoroborates (6a,b and 11a,b) with sodium benzenethiolate in DMSO give, through the preliminary formation of the corresponding diazosulfides (7a,b and 12a,b) bis(phenylthio)naphthalenes (8a,b and 13a,b) deriving from substitution of both the diazo group and the bromine.Isolated diazosulfides (7a,b and 12a,b) likewise furnish satisfactory yields of dinitriles (9a,b and 14a,b) by reaction with excess tetrabutylammonium cyanide in DMSO under photostimulation by a sunlamp.The intervention of an SRN1 process accounting for the formation of the disubstitution products is postulated.

Ammoxidation process for making 2,6-dicyanonaphthalene

In the process of making 2,6-dicyanonaphthalene by reacting 2,6-dimethylnaphthalene, ammonia and oxygen under ammoxidation conditions at atmospheric pressure, the improvement which comprises carrying out said ammoxidation in the presence of an unsupported alkali-metal vanadium bronze catalyst, optionally promoted with titanium, boron or iron and with a molar ratio of ammonia to 2,6-dimethylnaphthalene of at least about 25:1.