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  • Phenolic oxidative coupling : an approach to the synthesis of pretazettine

    Creator:
    Chong, Wesley Kwan Mung
    Abstract:
    Various hypervalent iodine compounds were evaluated as reagents for intramolecular phenolic oxidative coupling. It was found that phenyliodine(III) bis(trifluoroacetate) was effective for the coupling of the monophenolic substrate 13a to 14a under neutral conditions. Vanadium oxytrifluoride and hypervalent iodine compounds were compared as oxidants for the conversion of 32 to...
    Resource Type:
    Dissertation
    Full Text:
    precriwelline (20b). 2 4 5 12t "NCH3 B 07 H 8 0H 17, pretazettine, R1= OCH3, R2 = H 18, precriwelline, R1