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H. Shimizu Y. Ito Y. Matsuzaki H. Iijima T. Ogawa Biosci., Biotechnol., Biochem. 1996 60 73
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M. Joe D. Sun H. Taha G. C. Completo J. E. Croudace D. A. Lammas G. S. Besra T. L. Lowary J. Am. Chem. Soc. 2006 128 5059
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34
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72449178102
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note
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4,5 coupling constants
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-
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35
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72449212467
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The NMR chemical shifts for H-1, H-2 and H-3 were similar to those reported previously for a glucopyranosyl nitrilium ion (see ref. 23). Attempts to trap the nitrilium ion using Sinaÿs method were unfortunately inconclusive:
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The NMR chemical shifts for H-1, H-2 and H-3 were similar to those reported previously for a glucopyranosyl nitrilium ion (see ref. 23). Attempts to trap the nitrilium ion using Sinaÿs method were unfortunately inconclusive:
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-
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42
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58149154432
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Lowary and co-workers have demonstrated that 2,3-anhydro-furanosyl sulfoxide donors form 1,2-trans-triflate intermediates:
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J. R. Krumper W. A. Salamant K. A. Woerpel Org. Lett. 2008 10 4907
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52
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0031209054
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Note added in proof: Lowary and co-workers have recently reported an analogous study of 2-deoxy-2-thioarylxylofuranosyl cations; they also conclude that their glycosylation reactions proceed via oxacarbenium ion intermediates rather than through episulfonium ions.
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E. Cances B. Mennucci J. Tomasi J. Chem. Phys. 1997 107 3032
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