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The selena and thiaanhydro alditols (with xylo, ribo, d-arabino, erythro, d,l-threo and d-manno configuration) were easily and expeditiously synthesized in good to excellent yields by reaction of selenure and sulfur ions as binucleophiles with α,ω-dibromoalditols as bis-electrophilic substrates. With the 1,6-dibromo-d-glucitol derivative as substrate, only the corresponding thiepane derivative was...
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