2,2'-Bipyridine → HCID 4675456, compound

Participants

Reaction Steps

In each of the Examples 8 through 10, a palladium 2,2'-bipyridyl chelate salt was prepared by stirring a mixture of a solution of 0.80 g of 2,2'-bipyridyl dissolved in 100 ml of benzene with another solution of 1.12 g of palladium acetate dissolved in 100 ml of benzene, at at a temperature of 25° C. for about one hour. The resultant precipitate was separated from the mixture by means of filtration, washed with 100 ml of benzene and, then, dried. The amount of the resultant palladium chelate salt was 1.70 g. The same oxidative-coupling procedures as those described in Example 1 were carried out, except that 0.42 millimoles of the obtained palladium chelate salt were used as a catalyst instead of the mixture of palladium acetate and 2,2'-bipyridyl, and the reaction temperature was as indicated in Table 2. The results are also indicated in Table 2.

Provenance & Evidence