640734-41-4

Basic information

• Product Name: trans-2-[2,6-bis(bromomethyl)phenyl]-10b,10c-dimethyl-10b,10c-dihydropyrene
• Synonyms: trans-2-[2,6-bis(bromomethyl)phenyl]-10b,10c-dimethyl-10b,10c-dihydropyrene
• CAS NO: 640734-41-4
• Molecular Weight: 494.269
• Mol File: 640734-41-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: trans-2-[2,6-bis(bromomethyl)phenyl]-10b,10c-dimethyl-10b,10c-dihydropyrene(CAS DataBase Reference)
• NIST Chemistry Reference: trans-2-[2,6-bis(bromomethyl)phenyl]-10b,10c-dimethyl-10b,10c-dihydropyrene(640734-41-4)
• EPA Substance Registry System: trans-2-[2,6-bis(bromomethyl)phenyl]-10b,10c-dimethyl-10b,10c-dihydropyrene(640734-41-4)

Safety Data

• Hazardous Substances Data: 640734-41-4(Hazardous Substances Data)

Upstream product

• 640734-38-9 trans-2-(2,6-dicyanophenyl)-10b,10c-dimethyl-10b,10c-dihydropyrene 
• 640734-39-0 trans-2-(2,6-diformylphenyl)-10b,10c-dimethyl-10b,10c-dihydropyrene 
• 608-31-1 2,6-Dichloroaniline 
• 63069-52-3 2-aminobenzene-1,3-dicarbonitrile 
• 956-84-3 trans-10b,10c-dimethyl-10b,10c-dihydropyrene 
• 640734-40-3 trans-2-[2,6-bis(hydroxymethyl)phenyl]-10b,10c-dimethyl-10b,10c-dihydropyrene 

Relevant articles and documents

Evidence for Homo-Conjugation between Two Revolving 14π-Electron Systems in 10b-Methyl-10c-[2-(10b,10c-dimethyl-10b,10c-dihydropyrenyl)]-10b, 10c-dihydropyrene

Ring contraction followed by an elimination reaction on anti-9-methyl-18-trans-2-(10b,10c-dimethyl-10b,10c-dihydropyrenyl)-2,11-dithia[3,3]metacyclophane gave the desired compound 10b-methyl-10c-[2-(10b,10c-dimethyl-10b,10c-dihydropyrenyl)]-10b,10c-dihydropyrene. 1H NMR spectroscopic analysis indicated a ring current effect over a considerable distance from the macro-molecular plane of each of the aromatic rings with the two π systems freely rotating. Bathochromic shifts and peak broadening in its electronic spectrum clearly supports the presence of through-space π?π interactions between the two aromatic rings. This should serve as a good model to verify homo-conjugation effect in such a novel system where the two π systems are freely revolving. Copyright