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QCM 18 Concours 2020 chimie organique


unePASSmlg05
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il y a 5 minutes, unePASSmlg05 a dit :

Bonjour concernant le QCM18 item E, je comprend pas pourquoi la nomenclature est fausse, c'est bien une configuration r du coup mais je me suis trompé pour le hydroxy? merci beaucoup 

 

1n1r.png

c'est un (3R) - 2-méthyl-pentan-3-ol... Ton méthyl n'est pas prioritaire face à l'alcool

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