1338777-81-3

Basic information

• Product Name: 4,4-bis[5-(5'''-methyl-2,2'''-bipyridyl)]-(2,2',5,5'-tetramethoxy)biphenyl
• Synonyms: 4,4-bis[5-(5'''-methyl-2,2'''-bipyridyl)]-(2,2',5,5'-tetramethoxy)biphenyl
• CAS NO: 1338777-81-3
• Molecular Weight: 610.712
• Mol File: 1338777-81-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4,4-bis[5-(5'''-methyl-2,2'''-bipyridyl)]-(2,2',5,5'-tetramethoxy)biphenyl(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4-bis[5-(5'''-methyl-2,2'''-bipyridyl)]-(2,2',5,5'-tetramethoxy)biphenyl(1338777-81-3)
• EPA Substance Registry System: 4,4-bis[5-(5'''-methyl-2,2'''-bipyridyl)]-(2,2',5,5'-tetramethoxy)biphenyl(1338777-81-3)

Safety Data

• Hazardous Substances Data: 1338777-81-3(Hazardous Substances Data)

Upstream product

• 150-78-7 1,4-dimethoxybezene 
• 200943-34-6 4-bromo-1-(4-bromo-2,5-dimethoxyphenyl)-2,5-dimethoxybenzene 
• 25245-34-5 1-bromo-2,5-dimethoxybenzene 
• 4555-64-0 2,2',5,5'-tetramethoxybiphenyl 
• 1187163-83-2 5′-bromo-5-methyl-2,2′-bipyridine 
• 1338777-83-5 4,4′-bis(4,4,5,5-tetramethyl[1,3,2]dioxaborolan)-1,1′-(2,2′,5,5′-tetramethoxy)biphenyl 

Relevant articles and documents

New nickel(ii) and iron(ii) helicates and tetrahedra derived from expanded quaterpyridines

As an extension of prior studies involving the linear quaterpyridine ligand, 5,5″′-dimethyl-2,2′:5′,5″:2″, 2″′-quaterpyridine 1, the synthesis of the related expanded quaterpyridine derivatives 2 and 3 incorporating dimethoxy-substituted 1,4-phenylene and tetramethoxy-substituted 4,4′-biphenylene bridges between pairs of 2,2′-bipyridyl groups has been carried out via double-Suzuki coupling reactions between 5-bromo-5′-methyl-2′- bipyridine and the appropriate di-pinacol-diboronic esters using microwave heating. Reaction of 2 and 3 with selected Fe(ii) or Ni(ii) salts yields a mixture of both [M2L3]4+ triple helicates and [M4L6]8+ tetrahedra, in particular cases the ratio of the products formed was shown to be dependent on the reaction conditions; the respective products are all sufficiently inert to allow their chromatographic separation and isolation. Longer reaction times and higher concentrations were found to favour tetrahedron formation. The X-ray structures of solvated [Ni2(2)3](PF6)4, [(PF6) ? Fe4(2)6](PF6) 7, [Fe4(3)6](PF6)8 and [Ni4(3)6](PF6)8 have been determined, while the structure of the parent Fe(ii) cage in the series, [(PF6) ? Fe4(1)6](PF6) 7, was reported previously. The internal volumes of the Fe(ii) tetrahedral cages have been calculated and increase from 102 A3 for [Fe4(1)6]8+ to 227 A3 for [Fe4(2)6]8+ to 417 A3 for [Fe4(3)6]8+ and to an impressive 839 A3 for [Ni4(3)6]8+. The corresponding void volume in the triple helicate [Ni2(2) 3]4+ is 29 A3.