IUPAC NAME of CH3-CH2-c=o-CH3
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This given reaction is Claison arrangement which is powerful carbon - carbon Bond forming chemical reaction .In the given conditions there is sigmatropic rearrangement of an alkyl phenyl either to an intermediate which quickly tautomeriges to an ortho substituted phenol.
\sf\huge\implies⟹ If ortho position is substituted then reaction goes to oara position with retention on configuration..
Mechanism The arornatic Clasen rearrangement is followed by re- aromatization Due to electron shift there is a negative charge at the labelled carbon atom (C) hence this carbon is attached to benzene nucleus
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