By Lucas Zhang | 28 March 2023 | 0 Comments


The 2,2'-bipyridine ligand has been extensively used as a metal chelating ligand due to its robust redox stability and ease of functionalization. In contrast to other ligands, such as catechol, which is dianionic, and derivatives of the acetylacetonate ion, which are monoanionic, 2,2'-bipyridine is a neutral ligand. It thus forms charged complexes with metal cations, and this property has been exploited in the design and synthesis of metal-bipyridine complexes. 

Ligands containing two or more 2,2'-bipyridine units can in principle be used as bridges to interconnect metal centers in a well-defined spatial arrangement. The uses of such ligands as precursors for helical assembly, chiral molecular recognition, luminescent devices, and other applications in photonics and optoelectronics and electrochemistry have been studying extensively.

UCHEM has been focusing on development of symmetric and unsymmetric 2,2’-bipyridine for around 10 years. Currently, there are around 60 derivatives of 2,2’-bipyridine available from warehouse. Most of them are supplied in kilograms, such as

2,2’-Bipyridine CAS: 366-18-7

2,2’-biquinoline CAS: 119-91-5

2,2'-biquinoline-4,4'-dicarboxylic acid CAS:1245-13-2

4,4'-Di-tert-butyl-2,2'-bipyridine CAS:72914-19-3

4,4'-Dinonyl-2,2'-bipyridine CAS: 142646-58-0

4,4'-Dimethyl-2,2'-bipyridine CAS:1134-35-6

2,2'-Bipyridine-4,4'-dicarboxylic acid CAS:6813-38-3

2,2'-Dipyridyl N,N'-dioxide CAS: 7275-43-6

4,4’-Dimethoxy-2,2’-bipyridine CAS: 17217-57-1

4,4'-Dibromo-2,2'-Bipyridine CAS:18511-71-2

5,5'-Dimethyl-2,2'-bipyridine CAS: 1762-34-1

2,2'-Bipyridine-5,5'-dicarboxylic acid CAS:1802-30-8

6,6'-Dimethyl-2,2'-bipyridine CAS: 4411-80-7

2,2'-Bipyridyl-3,3'-dicarboxylic acid CAS:4433-01-6

All the above are available in kilograms. They also provide special 2,2’-bipyridines under 1Kg as the following:

2,2‘-Dipyrimidyl CAS:34671-83-5

2,2'-Bipyridine-4,4'-diamine CAS:18511-69-8

2,2'-Bipyridine-4,4'-diylbis-boronic acid CAS:159614-36-5

4,4'-Diethyl ester phosphonate-2,2'-bipyridine CAS:174397-53-6

2,2'-Bipyridine-4,4'-bis(phosphonic acid) CAS: 194800-56-1

4-Methyl-2,2'-bipyridine-4'-carboxylic acid CAS: 103946-54-9

4-Ethenyl-4'-methyl-2,2'-bipyridine CAS: 74173-48-1

4-(4'-Methyl-2,2'-bipyridin-4-yl)butyric acid CAS: 114527-28-5

2,2'-Bipyridine-4,4'-dicarboxylic acid, 6,6'-dimethyl-dimethyl ester CAS:117330-40-2

4-Bromo-2,2'-bipyridine CAS: 14162-95-9

4-(Thiophen-2-yl)-2,2'-bipyridine CAS: 210363-85-2

4-Methyl-2,2'-bipyridine CAS: 56100-19-7

2,2'-Bipyridine-4-carboxylic acid CAS:1748-89-6

2,2'-Bipyridine-5-carboxylic acid CAS: 1970-80-5

2,2'-Bipyridine-6-carboxylic acid CAS: 4392-87-4

  UCHEM also do customer synthesis for special 2,2’-bipyridine derivative.

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