ERNEST L. ELIEL, PhD, is W. R. Kenan Jr. Professor Emeritus at the University of North Carolina, Chapel Hill, North Carolina. He is the coauthor of Stereochemistry of Organic Compounds and the recipient of numerous academic and scientific awards. Professor Eliel is past president of the American Chemical Society and a member of the National Academy of Sciences.

SAMUEL H. WILEN, PhD, (deceased) was Professor of Chemistry at City College, City University of New York.

MICHAEL P. DOYLE, PhD, is Vice President of Research Corporation, located in Tucson, Arizona, and Professor of Chemistry at the University of Arizona. He is the recipient of numerous awards for research and teaching.