title: Epoxidation of chiral camphor N-enoylpyrazolidinones with methyl(trifluoromethyl)dioxirane and urea hydrogen peroxide/acid anhydride: reversal of stereoselectivity.
abstract: Both diastereomeric isomers of epoxides with high optical purity are obtained when camphor N-methacryloylpyrazolidinone (1a) and N-tigloylpyrazolidinone (1b) are treated with a urea hydrogen peroxide/TFAA and methyl(trifluoromethyl)dioxirane, respectively.
authors.affiliation: Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 116, ROC kchen@scc.ntnu.edu.tw
authors.forename: Chai Ling
authors.initials: CL
authors.lastname: Fan
authors.forename: Wei-Der
authors.initials: WD
authors.lastname: Lee
authors.forename: Nai-Wei
authors.initials: NW
authors.lastname: Teng
authors.forename: Ying-Chieh
authors.initials: YC
authors.lastname: Sun
authors.forename: Kwunmin
authors.initials: K
authors.lastname: Chen