cheminform abstract: new chiral hypervalent iodine compounds in asymmetric synthesis
TRANSCRIPT
1999 stereochemistry
stereochemistry (general, optical resolution)O 0030
12 - 034New Chiral Hypervalent Iodine Compounds in Asymmetric Synthe-sis. — Some new compounds of type (VI) are prepared and their use aselectrophilic reagents in the asymmetric dioxytosylation of styrene and in theα-oxytosylation of propiophenone is reported. Up to 53% e.e. are obtained forthe most effective iodine compound (VIa). The X-ray structural analysis ofone iodine compound shows a strong interaction of the oxygen of the methoxygroup and the iodine. — (HIRT, URS H.; SPINGLER, BERNHARD; WIRTH,THOMAS; J. Org. Chem. 63 (1998) 22, 7674-7679; Inst. Org. Chem., Univ.Basel, CH-4056 Basel, Switz.; EN)
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