An Alternative Route for Synthesis of Chiral 4-Substituted 1-Arenesulfonyl-2-imidazolidinones: Unusual Utility of (4S,5S)- and (4R,5R)-4,5-Dimethoxy-2-imidazolidinones and X-Ray Crystallography

Scheme 2

The utility of DMIm 6 and 7 for the synthesis of 1,2-diamino acids 8 and 𝐶₂-symmetric 1,2-diamines 9.