Cu( ii )-catalyzed asymmetric Mukaiyama–Michael reaction: concise synthesis of cyclohexadiene analogues

Using 0.5 mol% of Cu(OTf) 2 –imidazolidine–pyrroloimidazolone pyridine as a catalyst, diverse chiral 1,5-dicarbonyl compounds were obtained, which were transformed into cyclohexadiene compounds.