Asymmetric synthesis of 3-aminodihydrocoumarins <i>via</i> the chiral guanidine catalyzed cascade reaction of azlactones

Abstract

A new asymmetric preparative method of 3-aminodihydrocoumarins <italic>via</italic> reactions of azlactones and 2-nitrovinylphenols using chiral bifunctional guanidine catalysts.