2,7-Dibromonaphthalene

Base Information

• Chemical Name: 2,7-Dibromonaphthalene
• CAS No.: 58556-75-5
• Molecular Formula: C10H6Br2
• Molecular Weight: 285.966
• Hs Code.: 29039990
• Mol file: 58556-75-5.mol

Synonyms:2,7-Dibromonaphthalene;

Chemical Property of 2,7-Dibromonaphthalene

Chemical Property:

• Appearance/Colour: white solid
• Vapor Pressure: 0.000184mmHg at 25°C
• Melting Point: 141 ºC
• Refractive Index: 1.688
• Boiling Point: 339.1 ºC at 760 mmHg
• Flash Point: 184.7 ºC
• PSA: 0.00000
• Density: 1.834 g/cm³
• LogP: 4.36480
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• Solubility.: Soluble in acetonitrile.

Purity/Quality:

99% ^*data from raw suppliers

2,7-Dibromonapthalene ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi,N
• Statements: 36-51/53
• Safety Statements: 22-24/25-61-26

MSDS Files:

SDS file from LookChem

Useful:

• Uses: It is an intermediate in dyestuffs and pharmaceuticals.

Technology Process of 2,7-Dibromonaphthalene

There total 6 articles about 2,7-Dibromonaphthalene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 53.0%

→ 2,7-dibromonaphthalene (58556-75-5)

Guidance literature:

With bromine; triphenylphosphine; In acetonitrile; at 0 - 5 ℃;

With 2,7-Dihydroxynaphthalene; In acetonitrile; at 70 - 300 ℃;

DOI:10.3998/ark.5550190.0012.902

Reference yield: 49.0%

2,7-Dihydroxynaphthalene (582-17-2) → 2,7-dibromonaphthalene (58556-75-5)

Guidance literature:

With bromine; triphenylphosphine; In acetonitrile; at 20 - 70 ℃; Inert atmosphere;

Reference yield:

2,7-naphthalenedisulfonic acid (92-41-1) → 2,7-dibromonaphthalene (58556-75-5)

Guidance literature:

With copper(ll) bromide;

upstream raw materials:

2,7-naphthalenedisulfonic acid

3,6-dibromo-[2]naphthylamine

2,7-Dihydroxynaphthalene

naphthalene-2,7-disulfonic acid ; disodium-compound

Downstream raw materials:

2,7-naphthalenedicarboxaldehyde

naphthalene-2,7-dicarboxylic acid

2-bromo-7-phenylnaphthalene

7-bromo-naphthalene-2-carboxylic acid methyl ester

Refernces

• 1、 Gatti, Michele,Wu, Linglin,Drinkel, Emma,Gaggia, Fiona,Blumentritt, Sascha,Linden, Anthony,Dorta, Reto. "The effect of substituents on the syn-anti conformer ratio in naphthyl-based imidazolinium salts and their corresponding N-heterocyclic carbenes". experimental part. p. 176 - 198. Retrieved 2011/06/18.
• 2、 Neenan, Thomas X.,Whitesides, George M.. "Synthesis of High Carbon Materials from Acetylenic Precursors. Preparation of Aromatic Monomers Bearing Multiple Ethynyl Groups". . p. 2489 - 2496. Retrieved 2007/10/02.