2050-72-8

Usage

Derivative of

Naphthalene

Chlorine attachment

First and sixth carbon atoms

Common uses

Pesticide, insecticide, dye manufacturing, organic chemicals

Physical state

White, crystalline solid

Odor

Strong, aromatic

Solubility in water

Slightly soluble

Solubility in organic solvents

Highly soluble

Toxicity

Moderately toxic to humans and the environment

Carcinogenicity

Possible human carcinogen (International Agency for Research on Cancer)

Environmental impact

Harmful to aquatic organisms

Regulation

Regulated in many countries due to environmental concerns

InChI:InChI=1/C10H6Cl2/c11-8-4-5-9-7(6-8)2-1-3-10(9)12/h1-6H

Upstream product

• 607-46-5 1,6-dinitronaphthalene 
• 607-44-3 2-amino-5-nitronaphthalene 
• 10026-13-8 phosphorus pentachloride 
• 163453-91-6 6-sulfo-naphthalene-1-diazonium-betaine 
• 7719-12-2 phosphorus trichloride 
• 10025-87-3 trichlorophosphate 
• 7664-93-9 sulfuric acid 
• 123091-55-4 5-nitro-naphthalene-2-sulfonyl chloride 
• 7647-01-0 hydrogenchloride 
• 110448-37-8 6-bromo-naphthalene-1-sulfonyl chloride 
• 89108-45-2 6-(chloronaphthalen-2-yl)sulfonyl chloride 
• 102153-61-7 6-Chloronaphthalenesulphonyl chloride 
• 79575-91-0 1,6-naphthalenedisulfonyl chloride 
• 85-47-2 1-naphthalenesulfonic acid 

Downstream Products

• 27563-65-1 3-chlorobenzene-1,2-dicarboxylic acid 
• 2437-54-9 1,4,6-trichloronaphthalene 
• 89-20-3 4-chlorophthalic acid 

Relevant academic research and scientific papers

An unusual decarboxylative benzannulation and biaryl formation during copper(I)-promoted halogen atom transfer radical cyclization of 2-allylaryl trichloroacetates

CuCl/bpy-promoted halogen atom transfer radical cyclization of 2-allylaryl trichloroacetates in refluxing benzene gave benzannulated chloroarenes and benzannulated symmetrical biaryls along with reductive dehalogenation products. The unusual decarboxylative benzannulation and biaryl formation might be explained by a further intramolecular radical addition on the benzene ring of the eight-membered lactone intermediate, initially formed through 8-endo-trig halogen atom transfer radical cyclization, followed by decarboxylation, radical dimerization and dehydrochlorination reactions.

New reactivity patterns of copper(I) and other transition metal NHC complexes: application to ATRC and related reactions

Pre-formed transition metal-NHC complex is shown to be an effective catalyst for Atom Transfer Radical Cyclisation (ATRC) reactions.

PROCESS FOR SYNTHESIS OF AROMATIC COMPOUNDS

The present invention refers to a process for preparing a compound of the formula (I) wherein R denotes an organic radical which, together with the two carbon atoms to which it is bonded, forms a carbocyclic or heterocyclic ring; R1, R2, R3 and X, independently, denote hydrogen, halogen, nitro, cyano or an organic radical; or R1 and R2 or R2 and R3, together with the carbon atoms to which they are bonded, form a ring; which comprises exposing a compound of the formula (II) wherein R1, R2, R3 and X are defined as given above and Y and Z, independently, have one of the meanings of X; to an energy source in the presence of a catalyst system.