We report a synthetic strategy for chemoselective switch1 and diastereo-divergent approach to asymmetric reaction between 5H-oxazol-4-ones2 and N-itaconimides c
Recently,2,2.2-trifluorodiazoethane(CF,CHN2) has emerged as an attractive synthon in the construction of various trifluoromethyl-containing building blocks1.Not