摘要:
The previously observed regiocontrol of the ring-opening of epoxides bearing a remote polar group such as the title compounds (1 and 2) can also be achieved by metal-assisted methods for the direct aminolysis and azidolysis of epoxides. The appropriate use of the metal-assisted chelating or nonchelating procedures in the ring-opening of cis-epoxide 1 effects practically complete regiocontrol of these reactions, thus leading to regioalternating processes for the aminolysis and the azidolysis of 1.