Stereoselective cis glycosylation of 2-O-allyl protected glycosyl donors by intramolecular aglycon delivery (IAD)
作者:Christopher M. P. Seward、Ian Cumpstey、Mahmoud Aloui、Seth C. Ennis、Antony J. Fairbanks、Alison J. Redgrave
DOI:10.1039/b004522p
日期:——
2-O-Allyl protected glycosyldonors may be glycosylated stereoselectively via a three step sequence involving double bond isomerization, N-iodosuccinimide mediated tethering to a glycosyl acceptor and subsequent intramolecular glycosylation (intramolecular aglycon delivery, IAD).
An efficient one step dihydroxylation of 1,2-glycals with oxone in acetone
作者:Shikha Rani、Yashwant D. Vankar
DOI:10.1016/s0040-4039(02)02774-0
日期:2003.1
A number of glycals have been converted into the corresponding 1,2-diols in fair to good yields. The reaction appears to proceed via the corresponding epoxide which opens in situ. (C) 2003 Elsevier Science Ltd. All rights reserved.