Howard Zimmerman

Howard E. Zimmerman (July 5, 1926 – February 12, 2012) was a professor of chemistry at the University of Wisconsin–Madison. He was elected to the National Academy of Sciences in 1980 and the recipient of the 1986 American Institute of Chemists Chemical Pioneer Award.

Biography Howard E. Zimmerman was a native of Connecticut. During World War II, he served in the U.S. Armored Corps in Europe where he was a tank gunner. His final rank was technical sergeant. Zimmerman was the organizer of the 1972 IUPAC Photochemistry Symposium (Baden-Baden) and of five Pacifichem Symposia – the last being Pacifichem 2010.

Honors Phi Beta Kappa Sigma Xi 1950 The Chittenden Award given to the top B.S. graduate in the Yale class of 1950 1971 The first Northeast ACS Award for Photochemistry 1980 The Halpern Award of the New York Academy of Sciences 1980 Election to the National Academy of Sciences 1986 Recipient of the American Institute of Chemists Chemical Pioneer Award

Selected bibliography "The Stereochemistry of the Ketonization Reaction of Enols," Zimmerman, H. E. J. Org. Chem., 1955, 20, 549-557. "The Stereochemistry of the Ivanov and Reformatsky Reactions. I," Zimmerman, H. E.; Traxler, M. D. J. Am. Chem. Soc., 1957, 79, 1920-1923. "The Photochemical Rearrangement of 4,4-Diphenylcyclohexadienone. Paper I on a General Theory of Photochemical Reactions," Zimmerman, H. E.; Schuster, D. I. J. Am. Chem. Soc., 1961, 83, 4486-4487. "On Molecular Orbital Correlation Diagrams, the Occurrence of Möbius Systems in Cyclization Reactions, and Factors Controlling Ground and Excited State Reactions. I," Zimmerman, H. E. J. Am. Chem. Soc., 1966, 88, 1564-1565. "Photochemical Migratory Aptitudes in Cyclohexenones. Mechanistic and Exploratory Organic Photochemistry. XXIII," Zimmerman, H. E.; Rieke, R. D.; Scheffer, J. R. J. Am. Chem. Soc., 1967, 89, 2033-2047. "The Di-π-Methane Rearrangement. Interaction of Electronically Excited Vinyl Chromophores. Zimmerman, H. E.; Mariano, P. S. J. Am. Chem. Soc., 1969, 91, 1718-1727. "The Barrelene to Semibullvalene Transformation. Correlation of Excited State Potential Energy Surfaces With Reactivity. Mechanistic and Exploratory Organic Photochemistry. XLIV," Zimmerman, H. E.; Binkley, R. W.; Givens, R. S.; Sherwin, M. A.; Grunewald, G. L.; J. Am. Chem. Soc., 1969, 91, 3316-3323. . "The Möbius-Hückel Concept in Organic Chemistry. Application to Organic Molecules and Reactions," Zimmerman, H. E. Acc. Chem. Res., 1971, 4, 272-280. "Quantum Mechanics for Organic Chemists," Zimmerman, H. E. Academic Press, New York, 1975. "Some Theoretical Aspects of Organic Photochemistry," Zimmerman, H. E. Accts. of Chem. Research, 1982, 10, 312-317. "Kinetic Protonation of Enols, Enolates and Analogs; The Stereochemistry of Ketonization," Zimmerman, H. E.. Accounts of Chem. Res.', 1987, 20, 263-268. "Regioselectivity of the Birch Reduction", Zimmerman, H. E.; Wang, P. A., J. Am. Chem. Soc., 1993, 115, 2205-2216. "The Meta Effect in Organic Photochemistry; Mechanistic and Exploratory Organic Photochemistry", Zimmerman, H. E., J. Am. Chem. Soc. 1995, 117, 8988-8991. "Synthetic Aspects of the Di-π-methane Rearrangement", Zimmerman, H. E.; Armesto, D. Chem. Revs, 1996, 96, 3065-3112. "Energy Distribution and Redistribution and Chemical Reactivity. The Generalized Delta Overlap-Density Method for Ground State and Electron Transfer Reactions; A new Quantitative Counterpart of Electron Pushing”, Zimmerman, H. E.; Alabugin, I. V. J. Am. Chem. Soc. 2001, 121, 2265-2270 “Inter and Intramolecular Stereoselective Protonation of Enols”, Zimmerman, H. E.; Wang, P., J. Org. Chem. 2002, 69, 9216-9226. "Triplet Photochemistry of Vinyl Cyclopropenes; Mechanistic and Exploratory Organic Photochemistry", Zimmerman, H. E., J Org. Chem. 2009, 73, 1247-1251. .