Chapter 18, Problem 28P

Interpretation Introduction

(a)

Interpretation:

Hygrine need to be classified as $1^0,2^0\text{ or }{3}^0$ amine.

Concept Introduction:

Amines are classified as $1^0,2^0\text{ or }{3}^0$ by the number of alkyl groups bonded to the N atom.

  $1^0$ amines - Consist only one $C-N$ bond.

  $2^0$ amines- Consist two $C-N$ bonds.

  $3^0$ amines- Consist three $C-N$ bonds.

Interpretation Introduction

(b)

Interpretation:

The type of the N-heterocycle present in hygrine needs to be identified.

Concept Introduction:

The structures of different N-heterocycle molecules are as follows:

  

To check the type of N-heterocycle in hygrine, the structure needs to be compared with the structure of hygrine.