Abstract
AbstractA comprehensive study of the preparation and reactivity of N‐tert‐butanesulfinyl glycosylamines with simple Grignard and organo lithium reagents in batch vs. continuous flow chemistry is reported. As they readily react as latent imine equivalents with a variety of carbon nucleophiles, these carbohydrate derivatives constitute very useful precursors for the diastereoselective synthesis of bioactive compounds such as iminosugar‐C‐glycosides. A hybrid protocol, involving the addition of benzylmagnesium chloride to a (SR)‐arabinofuranosylamine substrate in flow, at room temperature, combined with a cyclization protocol in batch is also described for the first time. Of note, this semi‐continuous flow process shortens the synthesis of imino‐C‐glycoside scaffolds to a single workday.
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