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How did that isotopically labelled Carbon migrate? I know that an carbanion is formed, but I am not able to conclude the final product. Please Help enter image description here

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    $\begingroup$ The carbanion formed at one aldehyde attacks the other aldehyde by performing nucleophilic addition to form a cyclopropane ring. This ring opens up in such a way to give a more stable carbanion, which here is going to be on the C14 carbon (because of the electronic effects of oxygen). $\endgroup$
    – Box Box Box Box
    Sep 3, 2021 at 15:10
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    $\begingroup$ Can you kindly show mechanism like written sort of or text picturised solution $\endgroup$
    – Sharad Kothari
    Sep 3, 2021 at 16:32
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    $\begingroup$ And how can u compare carbanion stability it is identical $\endgroup$
    – Sharad Kothari
    Sep 3, 2021 at 16:33
  • $\begingroup$ See the mechanism for clemensen reduction. $\endgroup$
    – pranjal verma
    Sep 4, 2021 at 4:27

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