Pinacolone sodium enolate

Mixed-metal enolate has also been found. The core of the lithium sodium enolate of pinacolone forms an open stack structure in which two edges of the face-sharing cubes are absent. 

Aside from the amide base that serves for deprotonation of a carbonyl compound, the starting ketone can also participate in the formation of a mixed aggregate. This has been illustrated for the combination of pinacolone and its sodium enolate, as shown in Figure 3.3a [3b]. The tetrameric structure... 

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