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Paper | Special issue | Vol 39, No. 2, 1994, pp.649-656
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S(B)57
Diastereofacial Additions to a β-Substituted Glycal, Anhydrodihydroartemisinin

Yu Ming Pu and Herman Ziffer*

*National Institute of Health, 9000 Rockville Pike Bethesda, MD 20892-0815, U.S.A.

Abstract

Triphenylphosphine hydrobromide catalyzed electrophilic addition of ethanol to the carbon-carbon double bond of anhydrodihydroartemisinin occurs predominately from the β-face of the molecule.