Abstract The hemilabile chiral C 2 symmetrical bidentate substituted amide ligands (1R, 2R)- 5 ad and (1S, 2S)-6 ad were synthesized in quantitative yield from (1R, 2R)-(+)-3- methylenecyclo-propane-1, 2-dicarboxylic acid (1R, 2R)-3 and (1S, 2S)-(-)-3-methylene- ...