Solvent-Minimized, Chromatography-Free, Diastereoselective Synthesis of Oxazolidine-Dispirooxindoles via oxa-1,3-Dipolar Cycloaddition of 3-Oxindole.

Pre One:Visible-Light-Induced External Radical-Triggered Annulation To Access CF2-Containing Benzoxepine Derivatives.

Next One:Selectfluor-Triggered Tandem Cyclization of o-Hydroxyarylenaminones To Access Difluorinated 2-Amino-Substituted Chromanones.