Ferrocenoyl-substituted Cinchona alkaloidswere synthesized from ferrocenecarboxylic acid and thefree Cinchona alkaloids and represent readily availableorganometallic auxiliaries. They were employed as a rareexample of chiral ferrocenyl ligands in asymmetricoxidation chemistry.
Ferrocenoyl-substituted Cinchona alkaloids have been synthesized in a one-step procedure. These compounds act as ligands in Sharpless dihydroxylation and aminohydroxylation of olefins and represent a rare example of ferrocene-based ligands for oxidation catalysis.