1,4-dibromonaphthalene Chemical Properties

Melting point:

80-82 °C

Boiling point:

288.1°C (rough estimate)

Density 

1.8199 (estimate)

vapor pressure 

0-93.326Pa at 25℃

refractive index 

1.6000 (estimate)

storage temp. 

Sealed in dry,Room Temperature

solubility 

Chloroform, DMSO (Slightly), Methanol (Slightly)

form 

Crystalline Powder or Crystals

color 

White to light beige

Water Solubility 

347.9ug/L(25 ºC)

InChIKey

IBGUDZMIAZLJNY-UHFFFAOYSA-N

LogP

4.95-5.02

CAS DataBase Reference

83-53-4(CAS DataBase Reference)

EPA Substance Registry System

Naphthalene, 1,4-dibromo- (83-53-4)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

24/25-26

TSCA 

Yes

HazardClass 

IRRITANT

HS Code 

29039990

MSDS

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1,4-dibromonaphthalene Usage And Synthesis

Chemical Properties

light orange-beige fine crystalline powder

Uses

1,4-Dibromonaphthalene is used in the annelation of PAHs. Also used in the synthesis of novel, orally active dual NK1/NK2 antagonists.

Application

1,4-Dibromonaphthalene is mainly used for pharmaceutical intermediates. synthesis of tribromo methoxynaphthalenes from 1,4-dibromonaphthalene. starting material 1,4-dibromonaphthalene was prepared starting from naphthalene or 1-bromonaphthalene.

5,8-Dibromo-1,4-naphthoquinone and 5,8-diiodo-1,4-naphthoquinone were prepared from 1,4-dibromonaphthalene and 1,4-diiodonaphthalene.

Preparation

An environment-friendly method was developed to synthesize 1,4-dibromonaphthalene (1,4-DBN) using 1,3-dialkylimidazolium and pyridinium ionic liquids as catalysts, over which the yields of 1,4-DBN were obtained as high as 100%.
An environment-friendly method for synthesis of 1,4-dibromo-naphthalene in aqueous solution of ionic liquids

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