Synthesis of axially chiral biaryl thioglycosides through thiosugar-directed Pd-catalyzed asymmetric C–H activation
作者:Maha Fatthalla、Nicolas Grimblat、Etienne Brachet、Mouad Alami、Vincent Gandon、Franck Le Bideau、Samir Messaoudi
DOI:10.1039/d1cc03971g
日期:——
as a directing group enabling the regioselective activation of a C–H bond of biaryl scaffolds and as a chiral source inducing axial chirality. Our approach enables the easy generation of complex thioglycoside atropoisomers, thus paving the way to new products of potential biological interest.
<i>ortho</i>-Methoxycarbonylethynylphenyl Thioglycosides (MCEPTs): Versatile Glycosyl Donors Enabled by Electron-Withdrawing Substituents and Catalyzed by Gold(I) or Cu(II) Complexes
作者:Hui Liu、Zhi-Fen Liang、Han-Jian Liu、Jin-Xi Liao、Li-Jun Zhong、Yuan-Hong Tu、Qing-Ju Zhang、Bin Xiong、Jian-Song Sun
DOI:10.1021/jacs.2c13018
日期:2023.2.15
glycoside donors, a novel glycosylation protocol featuring mild and catalytic promotion conditions with Au(I) or Cu(II) complexes, expanded substrate scope encompassing challenging donors and acceptors and clinically used pharmaceuticals, and versatility in various strategies for highly efficient synthesis of glycosides has been established. The practicality of the MCEPT glycosylation protocol was fully exhibited
ortho-Alkynylphenyl thioglycosides as a new type of glycosylation donors under the catalysis of Au(I) complexes
作者:Fei Yang、Qiaoling Wang、Biao Yu
DOI:10.1016/j.tetlet.2012.07.059
日期:2012.9
ortho-Alkynylphenyl thioglycosides, prepared readily via Sonagashira coupling of ortho-bromophenyl thioglycosides with alkynes, could undergo glycosidation effectively under the catalysis of a gold(1) complex. (c) 2012 Elsevier Ltd. All rights reserved.