Die Titelverbindungen (I) wurden durch Metallierung entsprechender Dibromverbindungen mit Li‐düsopropylamid in THF bei Temperaturen von ‐90 bis ‐110°C erhalten.
DANIEL LELANDAIS. Can. J . Chcm. 61, 584 (1983).L'oxydation anodiquc d'acidcs carboxyliqucs portcurs cn P de la fonction acidc d'un groupcmcnt dioxolanne conduit avcc dc bons rendcments aux y-bisdioxolanncs symCtriqucs. L'hydrolysc dc ccs composCs fournit aiskmcnt les y-dicktoncs corrcspondantes.'La mkthodc de prkparation dcs acides dc depart est dkcritc.JACQUES EINHORN, JEAN-LOUIS SOULIER, CATHY BACQUET. and DANIEL LELANDAIS. Can. J. Chem. 61, 584 (1983).Anodic oxidation of carboxylic acids with P-dioxolane substituents leads to good yiclds of symmetrical y-bisdioxolanes. Hydrolysis of thcse compounds casily provides the corresponding y-diketoncs. The synthesis of the starting acids is described.[
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