Epoxidation of Geraniol: An Advanced Organic Experiment that Illustrates Asymmetric Synthesis
Bradley, Lynn M.
Springer, Joseph W.
Delate, Gregory M.
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The Sharpless epoxidation reaction is considered one of the most powerful advances in asymmetric organic synthesis (1). It is a classic example of the use of an asymmetric catalyst to provide an enantiomerically enriched mixture of epoxy alcohols. The procedure typically uses titanium(IV) tetraisopropoxide (Ti(OiPr)4) as a catalyst, a peroxide, and dialkyl tartrates to induce asymmetry in the epoxidation reaction of allylic alcohols. The experiment described in this paper illustrates the principle of asymmetric epoxidation and enables students to determine enantiomeric product ratios using chiral shift reagents and NMR spectroscopy.
Bradley, L., Springer, J., Delate, G., & Goodman, A. (1997). Epoxidation of geraniol: An advanced organic experiment that illustrates asymmetric synthesis. Journal Of Chemical Education, 74(11), 1336-1338.
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