Oxidation of Borneol: Possible Side Reactions & Effects

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Discussion Overview

The discussion revolves around the oxidation of borneol, specifically exploring possible side reactions and effects that may occur during the process. Participants examine the implications of using sodium hypochlorite in an acidic environment and the subsequent reactions that may arise, including the formation of camphor and other byproducts.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about potential side reactions during the oxidation of borneol, particularly questioning whether the acid-base reaction with NaOCl leading to the chloronium ion is a side reaction.
  • Another participant notes that treating hypochlorite with acid produces chlorine, raising concerns about the effects of chlorine on camphor and any remaining acid or base.
  • A participant mentions that if OCl attacks a hydrogen atom not bonded to the oxygen, it could lead to a double bond formation, although the primary product remains camphor rather than cyclohexene.
  • One participant introduces the concept of keto-enol tautomerism, prompting further inquiry into its relevance to the discussion.
  • Another participant acknowledges the potential formation of cyclohexene as a minor product during the oxidation process.
  • A later reply questions the reactions that might occur between cyclohexanone (as a keto-enol tautomer) and hypochlorite or chlorine.

Areas of Agreement / Disagreement

Participants express various viewpoints regarding the side reactions and products of borneol oxidation, indicating that multiple competing views remain without a clear consensus on the outcomes or mechanisms involved.

Contextual Notes

There are limitations regarding the assumptions made about reaction pathways, the dependence on specific conditions (such as acidity), and the unresolved nature of the reactions involving cyclohexanone and hypochlorite or chlorine.

lexia925
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What possible side reactions could occur in the oxidation of borneol? Since an acid-base rxn takes place when the NaOCl is added to the acetic acid, could that be considered a side-reaction since it gives rise to the chloronium ion or is there something else that happens after the production of camphor? Thanks.
 
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When you treat hypochlorite with acid, chlorine is produced. What will happen to champhor in the presence of chlorine and whatever base (or acid) might be left over?
 
From what I could find (and learned from the professor) is that if the OCl attacks the other H (not the one with the O-) then it would form a double bond allowing the OCl to leave. However the major product would be the formation of the ketone (camphor) and not the cyclohexene.
 
But what do you know about keto-enol tautomerism?
 
Not much. I did find out that one of the side reactions would be the formation of a cyclohexene ring (a minor product). Thanks.
 
Cyclohexanone can form a keto-enol tautomer. What is the likely reaction between that olefin and hypochlorite or Cl2?
 

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