Chapter E, Problem E.28P

Interpretation Introduction

(a)

Interpretation:

For the given molecule, the complete IUPAC name is to be written.

Concept introduction:

To write the IUPAC name, first it is important to determine the highest-priority functional group present that requires a suffix referring to Table E-1. In the molecule that contains both, an $\text{OH}$ and a ${\text{NH}}_2$ functional group, the functional group $\text{OH}$ gets priority over ${\text{NH}}_2$ functional group, and $\text{-ol}$ is added as a suffix to the IUPAC name. Next, the main chain or ring containing the highest-priority functional group is to be determined. The next step is to number the main chain or ring such that carbon atoms involving the highest-priority functional group receive the lowest possible numbers. The locator number for the highest-priority functional group is written immediately before the suffix, unless needed. All other functional groups in the molecule are treated as substituents and appear in the name as a prefix. Prefixes such as ‘di’, ‘tri’, ‘tetra’... etc. are used to indicate the number of identical substituents attached. The substituents are written in the alphabetical order.

Interpretation Introduction

(b)

Interpretation:

For the given molecule, the complete IUPAC name is to be written.

Concept introduction:

To write the IUPAC name, first it is important to determine the highest-priority functional group present that requires a suffix referring to Table E-1. The molecule that contains both, an $\text{OH}$ and a ${\text{NH}}_2$ functional group, the functional group $\text{OH}$ gets priority over ${\text{NH}}_2$ functional group, and the $\text{-ol}$ is added as a suffix to the IUPAC name. Next, the main chain or ring containing the highest-priority functional group is to be determined. The next step is to number the main chain or ring such that carbon atoms involving the highest-priority functional group receive the lowest possible numbers. The locator number for the highest-priority functional group is written immediately before the suffix, unless needed. All other functional groups in the molecule are treated as substituents and appear in the name as a prefix. Prefixes like ‘di’, ‘tri’, ‘tetra’… etc. are used to indicate the number of identical substituents attached. The substituents are written in the alphabetical order.

Interpretation Introduction

(c)

Interpretation:

For the given molecule, the complete IUPAC name is to be written.

Concept introduction:

To write the IUPAC name, first it is important to determine the highest-priority functional group present that requires a suffix referring to Table E-1. The molecule that contains both, an $\text{OH}$ and a ${\text{NH}}_2$ functional group, the functional group $\text{OH}$ gets priority over ${\text{NH}}_2$ functional group, and the $\text{-ol}$ is added as a suffix to the IUPAC name. Next, the main chain or ring containing the highest-priority functional group is to be determined. The next step is to number the main chain or ring such that carbon atoms involving the highest-priority functional group receive the lowest possible numbers. The locator number for the highest-priority functional group is written immediately before the suffix, unless needed. All other functional groups in the molecule are treated as substituents and appear in the name as a prefix. Prefixes such as ‘di’, ‘tri’, ‘tetra’... etc. are used to indicate the number of identical substituents attached. The substituents are written in the alphabetical order.