868860-21-3

Basic information

• Product Name: 1-(bromomethyl)-2,5-dichloro-4-methylbenzene
• Synonyms: 1-(bromomethyl)-2,5-dichloro-4-methylbenzene
• CAS NO: 868860-21-3
• Molecular Weight: 253.954
• Mol File: 868860-21-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1-(bromomethyl)-2,5-dichloro-4-methylbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(bromomethyl)-2,5-dichloro-4-methylbenzene(868860-21-3)
• EPA Substance Registry System: 1-(bromomethyl)-2,5-dichloro-4-methylbenzene(868860-21-3)

Safety Data

• Hazardous Substances Data: 868860-21-3(Hazardous Substances Data)

Upstream product

• 1124-05-6 1,4-dichloro-2,5-dimethylbenzene 
• 39652-33-0 2,5-Dichlor-4-methyl-benzylalkohol 

Relevant articles and documents

A new protocol for the synthesis of 4,7,12,15-tetrachloro[2.2]paracyclophane

We report a green and convenient protocol to prepare 4,7,12,15-tetrachloro[2.2]paracyclophane, the precursor of parylene D, from 2,5-dichloro-p-xylene. In the first bromination step, with H2O2-HBr as a bromide source, this procedure becomes organic-waste-free and organic-solvent-free and can appropriately replace the existing bromination methods. The Winberg elimination-dimerization step, using aqueous sodium hydroxide solution instead of silver oxide for anion exchange, results in a significant improvement in product yield. Furthermore, four substituted [2.2]paracyclophanes were also prepared in this convenient way.