7374-78-9

Basic information

• Product Name: 1,4,5,6,7,7-Hexachlorobicyclo(2.2.1)-5-heptene-2,3-dicarboxylic acid
• CAS NO: 7374-78-9
• Molecular Weight: 0
• Mol File: 7374-78-9.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,4,5,6,7,7-Hexachlorobicyclo(2.2.1)-5-heptene-2,3-dicarboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4,5,6,7,7-Hexachlorobicyclo(2.2.1)-5-heptene-2,3-dicarboxylic acid(7374-78-9)
• EPA Substance Registry System: 1,4,5,6,7,7-Hexachlorobicyclo(2.2.1)-5-heptene-2,3-dicarboxylic acid(7374-78-9)

Safety Data

• Hazardous Substances Data: 7374-78-9(Hazardous Substances Data)

Usage

Appearance

White, crystalline solid

Primary use

Flame retardant

Applications

Electrical insulating materials
Unsaturated polyester resins
Epoxy resins

Additional uses

Curing agent for epoxy resins
Corrosion inhibitor
Crosslinking agent in elastomers and plastics

Environmental classification

Persistent organic pollutant

International regulations

Subject to the Stockholm Convention on Persistent Organic Pollutants

Upstream product

• 108-31-6 maleic anhydride 
• 77-47-4 hexachlorocyclopentadiene 
• 115-27-5 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione 
• 18447-22-8 1c,3c,4,5,6,7,8,8-octachloro-(3ar,7ac)-1,3,3a,4,7,7a-hexahydro-4c,7c-methano-isobenzofuran 
• 7365-74-4 1,4,5,6,7,7-hexachlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride 

Relevant articles and documents

Phase transfer catalysis by tetraethylammonium bromide: Nucleophilic opening of anhydrides using potassium superoxide in aprotic medium

Tetraethylammonium superoxide, generated in situ by the phase transfer reaction of potassium superoxide and tetraethylammonium bromide, brings about a clean cleavage of various anhydrides, particularly those with high molecular weight in dry dimethylformamide. As an outcome, succinic anhydride 1; glutaric anhydride 2; 3,3-dimethylglutaric anhydride 3; phthalic anhydride 4; diphenic anhydride 5; 1,2,3,4-tetrahydro-9-oxo-1,4-ethanonaphthalene-2,3- endo-dicarboxylic anhydride 6: 1,4,5,6,7,7-hexachloro-5-norbomene-2,3- dicarboxylic anhydride 7; endo-bicyclo [2.2.1] heptan-2-one-5,6-dicarboxylic anhydride 8; cis-5-norbornene-endo-2,3-dicarboxylic anhydride 9 and trans- 1,2-cyclohexane dicarboxylic anhydride 10 have been transformed into their corresponding dicarboxylic acids in fairly good yields. The report demonstrates the applicability of tetraethylammonium bromide as a phase transfer catalyst for efficient superoxide studies.