The Cyclization/Rearrangement of α-Hydroxy Ketones with Trifluoromethyl N-acylhydrazones to Synthesize Multi-substituted Trifluoromethyloxazolines

A highly efficient and metal-free [3+2] cyclization/rearrangement reaction toward the synthesis of multisubstituted trifluoromethyloxazolines from α-hydroxyketones and trifluoromethyl N -acylhydrazones has been developed.