• For a review of the use of circular dichroism studies of salicylidene derivatives of chiral amines, to establish their absolute configurations using the "salicylidene chirality rule", see: Chem. Rev., 83, 359 (1983).
• A convenient method for the racemization of amino acids consists in heating in acetic acid with 0.05 equivalents of an aldehyde, such as salicylaldehyde: J. Org. Chem., 48, 843 (1983).