Epoxidation of Chiral Camphor N-Enoylpyrazolidinones with Methyl(trifluoromethyl)dioxirane and Urea Hydrogen Peroxide/Acid Anhydride: Reversal of Stereoselectivity

Chai Ling Fan, Wei Der Lee, Nai Wei Teng, Ying Chieh Sun, Kwunmin Chen

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Abstract

Both diastereomeric isomers of epoxides with high optical purity are obtained when camphor N-methacryl-oylpyrazolidinone (1a) and N-tigloylpyrazolidinone (1b) are treated with a urea hydrogen peroxide/TFAA and methyl-(trifluoromethyl)dioxirane, respectively.

Original languageEnglish
Pages (from-to)9816-9818
Number of pages3
JournalJournal of Organic Chemistry
Volume68
Issue number25
DOIs
Publication statusPublished - 2003 Dec 12

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ASJC Scopus subject areas

  • Organic Chemistry

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