Abstract
Dicyclopropyl ketone under Favorskii-Nazarov reaction conditions neither gave tetracyclopropylethylene glycol nor 1,1,4,4-tetracyclopropyl-1,4-butanediol by ether incorporation as expected. The hitherto unknown 1,1,5-tricyclopropyl-1-hydroxypentan-5-one is obtained, presumably through the intermediacy of a dianion which nucleophilically attacks the neutral ketone through the cleavage of the cyclopropyl bond.
Keywords: cyclopropyl bond cleavage, dianion intermediate, neutral ketone
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Selected References
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