Chapter 19, Problem 59PP

(a)

Interpretation Introduction

Interpretation: Reactants required to prepare the given imine has to be identified.

Concept introduction:

An imine is a compound having $C=N$ bond that is formed by the reaction of a ketone or aldehyde and primary amine under mild acidic conditions with the elimination of water molecule.

The part of the molecule that is attached to the carbon atom in the $C=N$ bond is from the ketone and the part attached to the nitrogen atom is for the primary amine.

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.

(b)

Interpretation Introduction

Interpretation: Reactants required to prepare the given imine has to be identified.

Concept introduction:

An imine is a compound having $C=N$ bond that is formed by the reaction of a ketone or aldehyde and primary amine under mild acidic conditions with the elimination of water molecule.

The part of the molecule that is attached to the carbon atom in the $C=N$ bond is from the ketone and the part attached to the nitrogen atom is for the primary amine.

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 Introduction

Interpretation: Reactants required to prepare the given imine has to be identified.

Concept introduction:

An imine is a compound having $C=N$ bond that is formed by the reaction of a ketone or aldehyde and primary amine under mild acidic conditions with the elimination of water molecule.

The part of the molecule that is attached to the carbon atom in the $C=N$ bond is from the ketone and the part attached to the nitrogen atom is for the primary amine.

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.