104616-87-7

Basic information

• Product Name: 1,8-bis(2-phenylethenyl)-biphenylene
• CAS NO: 104616-87-7
• Molecular Weight: 356.467
• Mol File: 104616-87-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,8-bis(2-phenylethenyl)-biphenylene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,8-bis(2-phenylethenyl)-biphenylene(104616-87-7)
• EPA Substance Registry System: 1,8-bis(2-phenylethenyl)-biphenylene(104616-87-7)

Safety Data

• Hazardous Substances Data: 104616-87-7(Hazardous Substances Data)

Upstream product

• 58746-94-4 1,8-biphenylenedicarboxaldehyde 
• 1100-88-5 benzyltriphenylphosphonium chloride 

Downstream Products

• 100229-94-5 1,8-bis(phenylethynyl)-biphenylene 

Relevant articles and documents

A STUDY of the 13C NMR SHIFTS in TWO TETRADEHYDROCYCLODECABIPHENYLENES and RELATED ARYL and BIPHENYLENYLACETYLENES.

The 13C spectra of 5,6,9,10-tetradehydrocyclodeca-benzobiphenylene, 1, and 5,6,9,10-tetradehydrocyclodeca-naphthobiphenylene, 2, are reported as are those of a number of simpler acetylenic hydrocarbons used as spectral references.Most of the shifts can be assigned unambiguously.The acetylenic shift assignments were verified by ortho-proton, sp-carbon sp(3)> decoupling experiments.A simple additive shift correlation is found for the hydrocarbons containing unstrained acetylenic groups.However, significant discrepencies are found for the 13C shifts for the strained hydrocarbons 1, 2, 1,2-bis(phenylethynyl)-benzene, 12, and 2,3-bis(phenylethynyl)naphthalene, 13.The discrepencies are particularily large for carbons near the triple bonds and are attributed to a combination of strain, rehybridization, and other proximity effects related to the interaction between the ortho-substituted acetylenic carbons.