27530-75-2

Basic information

• Product Name: C₂₀H₁₈Br₂
• CAS NO: 27530-75-2
• Molecular Weight: 418.171
• Mol File: 27530-75-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₂₀H₁₈Br₂(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₀H₁₈Br₂(27530-75-2)
• EPA Substance Registry System: C₂₀H₁₈Br₂(27530-75-2)

Safety Data

• Hazardous Substances Data: 27530-75-2(Hazardous Substances Data)

Upstream product

• 871-84-1 1,7-Octadiyne 
• 589-87-7 1,4-bromoiodobenzene 
• 51044-13-4 4-bromobenzyl triphenylphosphonium bromide 
• 765-87-7 cyclohexane-1,2-dione 
• 251347-34-9 1,8-bis(p-bromophenyl)octa-1,7-diyne 

Relevant articles and documents

A convenient preparative method of dibromoterphenyl and Bis(bromophenyl)diene monomers using zirconacyclopentadienes

Zirconacyclopentadienes prepared from 4,4′-dibromodiphenyldiynes or 1-(4′-bromophenyl)-1-alkynes reacted with dimethylacetylene dicarboxylate in the presence of CuCl afforded polyphenylene monomers which contain three benzene rings. Hydrolysis, chlorination with NCS, or allylation of the zirconacyclopentadienes gave a variety of polyphenylenedienylene monomers. Polymerization of these monomers using the system NiCl2(PPh3)2 (cat.)/Zn produced the corresponding polymers.