Explain why the 'H NMR supports the chemical structure (Aldol) The structural formula of the structure is C15H18O2. The name of the above structure is 3-(2-oxocyclohexyl)-3-phenylpropanal. The structure is written on the NMR. If you feel that's not the right structure, what is the correct one?

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Reactions at the Alpha Carbon Atom

The position next to the ketone or aldehyde functional group is termed as alpha position and the reaction which occurs at alpha position is called alpha substitution reaction. In an alpha substitution reaction, the alpha proton atom is substituted by an electrophile by the formation of an enol intermediate or enolate ion intermediate. Most of the carbonyl compounds go through an alpha substitution reaction.