Chapter 11, Problem 31P

Write a structure for each of the following

1. a. N,N – dimethylhexanamide
2. b. 3,3 – dimethylhexanamide
3. c. propionamide
4. d. sodium acetate
5. e. butyric anhydride
6. f. 3 – methylbutanenitrile

Interpretation Introduction

Interpretation:

The strucutre for the given name of the compound has to be drawn.

Concept introduction:

The structure of the organic compound and its name are closely related to each other. The structure of the compound can be drawn if the name is given and vice-versa. The name of an organic compounds tells about the number of carbons present in the compound which is necessary so as to draw the carbon skeleton in the structure. The suffix of the name of the compound provides information about the functional group present in the compound.

Answer to Problem 31P

The structure of $N,N-dimethylhexanamide$ is:

Explanation of Solution

The structure of the compound can be drawn if the name is given and vice-versa. The name of the compound is $N,N-dimethylhexanamide$. It indicates that six carbons are present in the compound. The suffix is ‘amide’ indicating the presence of an amide group $\left(-{\text{CONH}}_2\right)$. There are two methyl groups attached to nitrogen instead of hydrogens.

Thus, the structure is drawn as,

Interpretation Introduction

Interpretation:

The strucutre for the given name of the compound has to be drawn.

Concept introduction:

The structure of the organic compound and its name are closely related to each other. The structure of the compound can be drawn if the name is given and vice-versa. The name of an organic compounds tells about the number of carbons present in the compound which is necessary so as to draw the carbon skeleton in the structure. The suffix of the name of the compound provides information about the functional group present in the compound.

Answer to Problem 31P

The structure of $3,3-dimethylhexanamide$ is:

Explanation of Solution

The structure of the compound can be drawn if the name is given and vice-versa. The name of the compound is $3,3-dimethylhexanamide$. It indicates that six carbons are present in the compound. The suffix is ‘amide’ indicating the presence of an amide functional group $\left(-{\text{CONH}}_2\right)$. There are two methyl groups attached to third carbon in the compound. The numbering of carbon starts from the functional group side.

Thus, the structure is drawn as,

Interpretation Introduction

Interpretation:

The strucutre for the given name of the compound has to be drawn.

Concept introduction:

The structure of the organic compound and its name are closely related to each other. The structure of the compound can be drawn if the name is given and vice-versa. The name of an organic compounds tells about the number of carbons present in the compound which is necessary so as to draw the carbon skeleton in the structure. The suffix of the name of the compound provides information about the functional group present in the compound.

Answer to Problem 31P

The structure of $\text{propionamide}$ is:

Explanation of Solution

The structure of the compound can be drawn if the name is given and vice-versa. The name of the compound is $\text{propionamide}$. It indicates that three carbons are present in the compound. The suffix is ‘amide’ indicating the presence of an amide functional group $\left(-{\text{CONH}}_2\right)$.

Thus, the structure is drawn as,

Interpretation Introduction

Interpretation:

The strucutre for the given name of the compound has to be drawn.

Concept introduction:

The structure of the organic compound and its name are closely related to each other. The structure of the compound can be drawn if the name is given and vice-versa. The name of an organic compounds tells about the number of carbons present in the compound which is necessary so as to draw the carbon skeleton in the structure. The suffix of the name of the compound provides information about the functional group present in the compound.

Answer to Problem 31P

The structure of $\text{sodium acetate}$ is:

Explanation of Solution

The structure of the compound can be drawn if the name is given and vice-versa. The name of the compound is $\text{sodium acetate}$. It indicates that sodium is present in the compound and it is attached to the acetate group $\left({\text{CH}}_{\text{3}}\text{COO}-\right)$.

Thus, the structure is drawn as,

Interpretation Introduction

Interpretation:

The strucutre for the given name of the compound has to be drawn.

Concept introduction:

The structure of the organic compound and its name are closely related to each other. The structure of the compound can be drawn if the name is given and vice-versa. The name of an organic compounds tells about the number of carbons present in the compound which is necessary so as to draw the carbon skeleton in the structure. The suffix of the name of the compound provides information about the functional group present in the compound.

Answer to Problem 31P

The structure of $\text{butyric anhydride}$ is:

Explanation of Solution

The structure of the compound can be drawn if the name is given and vice-versa. The name of the compound is $\text{butyric anhydride}$. The acid anhydride of butyric acid is $\text{butyric anhydride}$.

The suffix is ‘anhydride’ indicating the presence of an acid anhydride group in which the $\left(\text{R}\right)$ group is butanoic or butyric.

Thus, the structure is drawn as,

Interpretation Introduction

Interpretation:

The strucutre for the given name of the compound has to be drawn.

To draw the structure of the given compounds.

Concept introduction:

The structure of the organic compound and its name are closely related to each other. The structure of the compound can be drawn if the name is given and vice-versa. The name of an organic compounds tells about the number of carbons present in the compound which is necessary so as to draw the carbon skeleton in the structure. The suffix of the name of the compound provides information about the functional group present in the compound.

Answer to Problem 31P

The structure of 3-methylbutanenitrile is:

Explanation of Solution

The structure of the compound can be drawn if the name is given and vice-versa. The name of the compound is 3-methylbutanenitrile. It indicates that four carbons are present in the carbon skeleton of the compound. The suffix is ‘nitrile’ indicating the presence of a nitrile functional group. There is a methyl group on the third carbon in the chain. The numbering of carbons starts from the functional group side.

Thus, the structure is drawn as,