Chemoselective glycosylation of carboxylic acid with glycosyl ortho-hexynylbenzoates as donors
摘要:
The gold(I)-catalyzed glycosylation of acid alcohols with glycosyl ortho-hexynylbenzoates in the presence of BF3 center dot Et2O and DBU provided the corresponding ester glycosides chemoselectively in high yield; while with DTBP as an additive instead, orthoester formation with the alcohol was effected selectively. (C) 2010 Elsevier Ltd. All rights reserved.
Chemoselective glycosylation of carboxylic acid with glycosyl ortho-hexynylbenzoates as donors
作者:You Yang、Yao Li、Biao Yu
DOI:10.1016/j.tetlet.2010.01.039
日期:2010.3
The gold(I)-catalyzed glycosylation of acid alcohols with glycosyl ortho-hexynylbenzoates in the presence of BF3 center dot Et2O and DBU provided the corresponding ester glycosides chemoselectively in high yield; while with DTBP as an additive instead, orthoester formation with the alcohol was effected selectively. (C) 2010 Elsevier Ltd. All rights reserved.