Chemistry:Dimethyl-2,2'-bipyridine
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Dimethyl-2,2'-bipyridine can refer to many isomers of 2,2'-bipyridine containing two methyl substituents. All have the formula (CH
3)
2C
10H
6N
2, but the most common are symmetrical derivatives (CH
3C
5H
3N)
2 listed below. These compounds are used as ligands in coordination chemistry and homogeneous catalysis. They are white or colorless. Most are solids except the 3,3' isomer which is a liquid.
| compound | Registry number | melting/boilingpoint (°C) |
|---|---|---|
| 4,4'-dimethyl-2,2'-bipyridine | 1134-35-6 | 171-172 |
| 5,5'-dimethyl-2,2'-bipyridine | 1762-34-1 | 114.5-115 |
| 6,6'-dimethyl-2,2'-bipyridine | 4411-80-7 | 89.5-90.5 |
| 3,3'-dimethyl-2,2'-bipyridine | 1762-32-9 | 293-298[1] |
References
- ↑ Case, Francis H. (1946). "The Synthesis of Certain Substituted 2,2'-Bipyridyls1". Journal of the American Chemical Society 68 (12): 2574–2577. doi:10.1021/ja01216a045.
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