Research Interests
 Selected prochiral or racemic alkyl bromides have been converted to diastereomeric camphorsulfonates separable by crystallization, affording 99.9+% ee chiral building blocks for asymmetric synthesis. These synthons have been applied to synthesis of multigram quantities of highly pure insect pheromones, which, in collaboration with entomologists in academia and the U.S. Department of Agriculture, have been used to monitor and control insect pest populations in the United States and around the world. Current work focuses on preparation and use of second- and third-generation camphorsulfonates, to facilitate resolution and expand the accessible variety of chiral building blocks.
Selected Publications
Sex Pheromone Components of Indian Gypsy Moth, Lymantria Obfuscata; Gries, R.; Schaefer, P. W.; Hahn, R.; Khaskin, G.; Ramaseshiah, G.; Singh, B.; Hehar, G. K.; Gries, G. J. Chem. Ecol. 2007, 33, 1774-1786.
The Organometallic Chemistry of the Alkaline Earth Metals; Alexander, J. S.; Zuniga, M.; Guino-o, T.; Hahn, R.; Ruhlandt-Senge, K; Chapter in The Encyclopedia of Inorganic Chemistry, Wiley, 2005.
(7R,8S)-cis-7,8-Epoxy-2-methyloctadec-17-ene: A Novel Trace Component from the Sex Pheromone Gland of Gypsy Moth, Lymantria dispar; Gries, R.; Khaskin, G.; Schaefer, P. W.; Hahn, R.; Gotoh, T.; Gries, G. J. Chem. Ecol. 2005, 31, 49-62.
Improved Synthesis and Deployment of (2S,3R)-2-(2Z, 5Z-Octadienyl)-3-nonyloxirane, a Pheromone of the Pink Moth Lymantria Mathura; Khrimian, A.; Oliver, J. E.; Hahn, R. C.; Dees, N. H.; White, J.; Mastro, V. C. J. Agric. Food Chem. 2004, 52, 2890-2895.
Moving Disc Filtration: Low-Temperature, Inert-Atmosphere Removal of Solvent from Low-Melting Crystals in an Ordinary, One-Neck Flask; Hahn, R. C. Aldrichimica Acta 1998, 31, 75.
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