Regiochemical control of the ring-opening of 1,2-epoxides by means of chelating processes. 3. Aminolysis and azidolysis of the cis- and trans-oxides derived from 4-(benzyloxy)cyclohexene
作者:Marco Chini、Paolo Crotti、Lee A. Flippin、Franco Macchia
DOI:10.1021/jo00025a018
日期:1991.12
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.