14376-78-4

Basic information

• Product Name: 1,1'-Biphenyl, 2,2'-diiodo-4,4'-dimethyl-
• Synonyms: 2,2'-Diiod-4,4'-dimethyl-biphenyl;2,2'-Diiodo-4,4'-dimethylbiphenyl;2,2'-Diiodo-4,4'-dimethyl-1,1'-biphenyl;2,2'-Dijod-4,4'-dimethyl-biphenyl;1,1'-Biphenyl,2,2'-diiodo-4,4'-dimethyl
• CAS NO: 14376-78-4
• Molecular Formula: C14H12I2
• Molecular Weight: 434.058
• Mol File: 14376-78-4.mol

Chemical Properties

• CAS DataBase Reference: 1,1'-Biphenyl, 2,2'-diiodo-4,4'-dimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-Biphenyl, 2,2'-diiodo-4,4'-dimethyl-(14376-78-4)
• EPA Substance Registry System: 1,1'-Biphenyl, 2,2'-diiodo-4,4'-dimethyl-(14376-78-4)

Safety Data

• Hazardous Substances Data: 14376-78-4(Hazardous Substances Data)

Upstream product

• 59517-21-4 4,4′-dimethyl-[1,1′-biphenyl]-2,2′-diamine 

Downstream Products

• 69452-61-5 3,7-dimethyl-5-phenyl-5H-benzo[b]phosphindole 
• 22454-21-3 5-(2-isopropyl-phenyl)-3,7,3',7'-tetramethyl-5H-5λ⁵-[5,5']spirobi(benzo[b]phosphindole) 
• 53356-69-7 3,7,3',7'-tetramethyl-5-(2,4,6-triisopropyl-phenyl)-5H-5λ⁵-[5,5']spirobi(benzo[b]phosphindole) 
• 69680-65-5 5-biphenyl-2-yl-3,7-dimethyl-5H-5λ⁵-spiro[benzo[b]arsindole-5,11'-dibenzo[b,g]arsindole] 
• 69452-67-1 3,7-dimethyl-5-phenyl-5H-5λ⁵-spiro[benzo[b]arsindole-5,11'-dibenzo[b,g]arsindole] 
• 69452-63-7 3,7-dimethyl-5-phenyl-5H-5λ⁵-spiro[benzo[b]phosphindole-5,11'-dibenzo[b,g]phosphindole] 
• 69452-62-6 N-(3,7-dimethyl-5-phenyl-5H-5λ⁵-benzo[b]phosphindol-5-ylidene)-toluene-4-sulfonamide 
• 69452-65-9 3,7-dimethyl-5-(2-phenyl-naphthalen-1-yl)-5H-dibenzoarsole 

Relevant articles and documents

The role of ate complexes in the lithium-sulfur, lithium-selenium and lithium-tellurium exchange reactions

Hypervalent ate complexes are presumptive intermediates in the metal-halogen, metal-tellurium, and related exchange reactions. The effect of o,o′-biphenyldiyl vs. diphenyl substitution on formation of tellurium ate complexes was studied by a kinetic technique and by NMR spectroscopy. Only a modest increase in the association constant (Kate) was measured. When Li/M exchanges of o,o′-biphenyldiyl sulfides and selenides were made intramolecular by means of a m-terphenyl framework (12-S, 12-Se, 21), enormous increases (> 109) in the rate of Li/S and Li/Se exchange were observed compared to acyclic models. Apparently, these systems are ideally preorganized to favor the T-shaped geometry of the hypervalent intermediates. For the selenium systems, ate complex intermediates (20-Se, 26) were detected spectroscopically in THF- or THF/HMPA-containing solutions. A DNMR study showed that Li/Se exchange was substantially faster than exchange of the lithium reagents with the ate complex. Therefore, these ate complexes are not on the actual Li/Se exchange pathway.