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Beilstein J. Org. Chem. 2017, 13, 2385–2395, doi:10.3762/bjoc.13.236
Graphical Abstract
Scheme 1: Mechanistic hypothesis for work.
Figure 1: 1H NMR (a) glycosyl donor 1α and (b) a mixture of 1α and 10 mol % 3a in CD2Cl2 at room temperature.
Figure 2: 1H NMR (a) glycosyl acceptor 2a, (b) pyridinium salt 3a (in DMSO-d6) and (c) a mixture of 2a and 3a...
Figure 3: 1H NMR (a) glycosyl acceptor 2a, (b) pyridinium salt 3a (in DMSO-d6), (c) aryl thiourea and (d) a m...
Scheme 2: Synergistic electron-deficient pyridinium salt/aryl thiourea-catalyzed regioselective O-glycosylati...
Figure 4: Plausible reaction mechanism.
Beilstein J. Org. Chem. 2013, 9, 2097–2102, doi:10.3762/bjoc.9.246
Scheme 1: Gold-catalyzed approaches towards spiroindolines.
Scheme 2: Plausible mechanism for the domino sequence.