Bipyridine is a kind of product prepared by pyridine compound reaction. The common ones are 2,2'-bipyridine and 4,4'-bipyridine. They are often used in the determination of iron, silver, cadmium and molybdenum; as a redox indicator agent. Next, let's take a look at the structural reactions of bipyridine manufacturers.

　　Note: This reagent is flammable and produces toxic nitrogen oxide fumes when burned. Store in a fume hood.

　　2-methylpyridine reaction

　　2,2-Bipyridyl is a very important ligand in organic chemistry. Due to its aromatic nature, a series of reduction reactions, oxidation reactions and CH bond activation reactions can also occur.

　　2,2-bipyridine reacts with osmium hexachloride at high temperature overnight to form the corresponding complex.

　　The reaction of 2,2-bipyridine with silver perchlorate (I) at room temperature can form the corresponding complex, and the reaction with cadmium diiodide (II) can form pyridine and iodine coordination products on cadmium.

　　2,2-bipyridine can coordinate with non-metallic silicon or metal. The corresponding 2,2'-bipyridine and silicon dihydrochloride complexes can be formed in toluene solvent.

　　In addition to its outstanding coordination ability, pyridine also has the characteristics of aromatic compounds, because it is itself an aromatic system. In hydrochloric acid acetate platinum dioxide solution, the reduction of 2,2'-bipyridine with hydrogen gives the product of two pyridine rings. If m-CPBA is oxidized and then subjected to Pd/C catalytic hydrogenation reduction, only one pyridine ring can be reduced.

　　2,2-bipyridine can be oxidized to 2,2-bipyridine 1-nitrogen oxide with m-CPBA.

　　A rhodium complex was used to catalyze the activation of 2,2-bipyridine and alkenes for the 3-position and 3'-position carbon-hydrogen activation.

　　Under the catalysis of complex nickel, 2,2-bipyridine reacts with diphenylzinc reagent to generate 6-phenyl-2,2-bipyridine.