CHEMISTRY

NAME
William S. Knowles

BORN
1917 (U.S. citizen)

EDUCATION
Ph.D., 1942, Columbia University

CAREER
Previously at Monsanto Company, St. Louis, Missouri. Retired since 1986.

NOTABLE CONTRIBUTION
He "discovered that it is possible to use transition metals to make chiral catalysts for an important type of reaction called hydrogenation," said a Nobel Prize press release. This research led to the rapid production of L-Dopa, a drug used in the treatment of Parkinson's disease.