How is 2,2’-Dimethyl-3,3’-bipyridine (CAS: 86156-55-0) typically synthesized?

2,2’-Dimethyl-3,3’-bipyridine is typically synthesized via a multi-step process involving the condensation of 2,2’-bipyridine with methyl iodide. The reaction proceeds in the presence of a base like sodium hydroxide, followed by recrystallization to obtain the desired product. Commonly, this synthesis is carried out under mild conditions to achieve good yields and selectivity.