Vinyl isonitriles in radical cascade reactions: formation of cyclopenta-fused pyridines and pyrazines

摘要

The 4 + 1 radical annulation reaction of vinyl isonitriles with iodoalkynes or iodonitriles affording cyclopenta-fused pyridines and pyrazines respectively and the first example of an intramolecular radical addition to an aryl isonitrile are described. [References: 23]