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[摘要]：2,2'-Bipyridines are of great importance in the fields of catalysis, coordination chemistry, supramolecular chemistry, macromolecular chemistry and photochemistry. Recently, the metal-catalyzed [2+2+2]-type cycloaddition reaction of alkynes and nitriles has attracted considerable interest as a straightforward, atom-economical route to substituted pyridines and methods have been extensively applied to bipyridine synthesis. Developments in the field of 2,2'-bipyridine synthesis through alkyne/nitrile [2 + 2 + 2] cycloaddition reactions catalyzed by transition metals are reviewed in this article involving two types of fully intramolecular reaction, five types of partially Intramolecular reaction and fully intermolecular reactions. |
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