Glycosylations Directed by the Armed-Disarmed Effect with Acceptors Containing a Single Ester Group
作者:Thomas H. Schmidt、Robert Madsen
DOI:10.1002/ejoc.200700347
日期:2007.8
A selective glycosylation reaction controlled by the armed-disarmedeffect is described by the use of phenyl thioglycosides. The donor thioglycoside is fully protected with benzyl ethers while the acceptor thioglycoside contains benzyl ethers at position 2 and 3 and a strongly electron-withdrawing pentafluorobenzoate estergroup at position 6. The coupling can be performed with galactose, glucose,