Study on the 1,3-dipolar cycloaddition reaction of 4-ethoxy-1,1,1-trifluoro-3-buten-2-one with nitrile oxides

1,3-Dipolar cycloaddition reaction of trifluoromethyl substituted α,β-unsaturated ketone with nitrile oxides was examined and a series of bicycloaddition products were obtained.