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Bonjour, 

Dans le QCM 23 de l'annale 22-23, session 2, il nous est évoqué la formation d'un éther-oxyde dans l'item E. 
Dans cette suite réactionnelle, je n'arrive pas à comprendre comment on passe du composé C au composé D, la liaison se fait-elle via l'alcoolate de sodium et si oui comment ? 
 

QCM : https://zupimages.net/viewer.php?id=24/12/quu6.png


Merci d'avance 

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