
Concept explainers
(a)
Interpretation: Reactants required to prepare the given enamine has to be identified.
Concept introduction:
Enamine reaction:
Carbonyl compound (
An enamine is a compound where the lone pair of electrons in the nitrogen atom of
It is formed by the reaction of a ketone or aldehyde and a secondary amine under acidic conditions with the elimination of water molecule.
Retro synthesis: It is a technique of planning an
(b)
Interpretation: Reactants required to prepare the given enamine has to be identified.
Concept introduction:
Enamine reaction:
Carbonyl compound (ketone or aldehyde) reaction with secondary amine in the presence of acid which gives enamine.
An enamine is a compound where the lone pair of electrons in the nitrogen atom of
It is formed by the reaction of a ketone or aldehyde and a secondary amine under acidic conditions with the elimination of water molecule.
Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.
(c)
Interpretation: Reactants required to prepare the given enamine has to be identified.
Concept introduction:
Enamine reaction:
Carbonyl compound (ketone or aldehyde) reaction with secondary amine in the presence of acid which gives enamine.
An enamine is a compound where the lone pair of electrons in the nitrogen atom of
It is formed by the reaction of a ketone or aldehyde and a secondary amine under acidic conditions with the elimination of water molecule.
Retro synthesis: It is a technique of planning an organic synthesis by the reverse approach. In this technique, the starting materials are obtained by cleaving the target molecule into logical synthons. Synthons are precursor fragments of the target compound when it is cleaved. Depending on the stability, the synthons are classified as logical and illogical synthons. Logical synthons are highly stable precursor fragments, and illogical synthons are less stable precursor fragments of the target compound.

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Chapter 19 Solutions
ORGANIC CHEMISTRY-PRINT COMPANION (LL)
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