Lewis Acid Catalyzed Cyclization of Glycals/2-Deoxy-<scp>d</scp>-ribose with Arylamines: Additional Findings on Product Structure and Reaction Diastereoselectivity
Meanwhile, the diastereoselectivity in InBr3-catalyzedcyclization of glycals with arylamines was also incorrectly reported previously. It was found that high diastereomeric selectivity was achieved only when a C5-substituted glycal was used; otherwise, a pair of diastereomers was obtained in moderate yield with 1:1 diastereomeric ratio. Furthermore, tetrahydrofuran-fused tetrahydroquinolines 5b and