Author/Authors :
Chang، نويسنده , , Chuan-Fa and Yang، نويسنده , , Wen-Bin and Chang، نويسنده , , Che-Chien and Lin، نويسنده , , Chun-Hung، نويسنده ,
Abstract :
Various exo-glycals were explored for the glycosidic bond formation and synthesis of spiroacetals in a stereoselective manner. The former reaction was an intermolecular alcohol addition to give the S new stereogenic center, resulting from the nucleophilic attack from the bottom face of the sugar ring. The latter one was carried out by the hydroboration of a sugar diene, followed by a subsequent acid workup.
