Abstract
δ-Hydroxy-α,β-unsaturated sugar aldehydes (Perlin aldehydes) undergo smooth coupling with β-enamino ketones and β-enamino esters generated in situ from arylamines and 1,3-dicarbonyl compounds in the presence of 10 mol% InCl3 in acetonitrile at 80 ˚C, to produce oxa-aza-bicycles in good yields with high selectivity.
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