Chapter 13.9, Problem 13.30P

Interpretation Introduction

Interpretation:

Structure has to be drawn for primary amide, secondary amide, and tertiary amide that has molecular formula of ${\text{C}}_{\text{4}}{\text{H}}_{\text{9}}\text{NO}$.

Concept Introduction:

Amides contain a nitrogen atom that is bonded to carbonyl group.  The nitrogen atom that is bonded to the carbonyl group may be bonded to alkyl groups or hydrogen atoms.  Depending on the number of carbon atoms that is attached to the nitrogen atom, the amide is classified as primary, secondary, and tertiary.

Primary amide is the one that contains only one $\text{C}-\text{N}$ bond.  General structure of primary amide is ${\text{RCONH}}_{\text{2}}$.  Secondary amide is the one that contains two $\text{C}-\text{N}$ bonds.  General structure of secondary amide is $\text{RCONHR'}$.  Secondary amide is the one that contains three $\text{C}-\text{N}$ bonds.  General structure of secondary amide is ${\text{RCONR'}}_{\text{2}}$.