Rings beget rings: Benzazepines, well‐known structural design elements in medicinal chemistry, are readily prepared by a one‐pot palladium‐catalyzed oxidative cycloaddition of isatins with various alkynes.

A general organocatalytic 1,3-dipolar cycloaddition reaction between allyl ketones and various azides is reported. The reaction is catalyzed by a secondary amine to generate substituted 1,2,3-triazoles with high levels of regioselectivity.

We reported an enamine catalyzed strategy to fully promote a 1,3-dipolar cycloaddition to access a vast pool of substituted 1,2,3-triazoles with water as the only solvent.

The 3-hydroxy-2-oxindole scaffold is being continuously discovered to be at the core of a diverse set of natural products. Herein, we document a highly efficient catalytic decarboxylative [1,2]-addition strategy to quickly assemble this scaffold, using a catalytic amount of weak base.

We disclose a novel efficient enantioselective organocatalytic cascade reaction for the preparation of δ-lactones in good to excellent yields (69-93%) and with high to excellent enantioselectivities (88-96% ee).