Synthesis of enantiopure norbornane derivatives. Effect of bridgehead substituent on the π-facial selectivity of the reduction of 2-norbornanones and their oximes
A facile synthesis of homochiral 1-norbornanecarboxylic acids and 1-norbornanecarbonitriles
摘要:
A general method for the preparation of the title compounds from naturally occurring homochiral 2-norbornanones is presented. The key step is the Tf(2)O induced Wagner-Meerwein rearrangement of the corresponding cyanohydrins.