Abstract
The presence of CeCl 3 greatly increases the yield of ketones in the reaction of organolithiums with lithium carboxylates. The Ce III suppresses the enolization of the lithium carboxylate, previously unrecognized as a competing reaction except in special cases, and the formation of tertiary alcohols. One of the reasons for the latter effect is a surprising increase in the rate of addition of the organometallic to the lithium carboxylate in the presence of Ce III.
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