作者:Chuan-Fa Chang、Wen-Bin Yang、Che-Chien Chang、Chun-Hung Lin
DOI:10.1016/s0040-4039(02)01473-9
日期:2002.9
Various exo-glycals were explored for the glycosidic bond formation and synthesis of spiroacetals in a stereoselcctive 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. (C) 2002 Elsevier Science Ltd. All rights reserved.