Chapter F, Problem F.33P

Interpretation Introduction

(a)

Interpretation:

For the given compound, the IUPAC name is to be assigned.

Concept introduction:

In naming organic compounds, the functional groups other than the highest priority functional groups are treated as substituents. The root name is established by identifying the longest carbon chain or a ring containing a functional group. Remove the “e” from the normal ‘ane’, ‘ene’, or ‘yne’ ending and add the suffix that corresponds to the highest-priority functional group. If the highest priority group is present twice then there is no need to remove ‘e’ from‘ane’, ‘ene’, or ‘yne’. Endings and prefixes are used to denote the number of identical functional groups. Symmetric acid anhydride, name the molecule according to the general form alkanoic anhydride.

Number the carbon chain in a way that the functional group and the substituents attached get the lowest number. The position of the functional group and substituents on parent chain or ring is indicated by the respective locant number just before the suffix. The substituent groups are written in alphabetical order when writing the IUPAC name.

Interpretation Introduction

(b)

Interpretation:

For the given compound, the IUPAC name is to be assigned.

Concept introduction:

In naming organic compounds, the functional groups other than the highest priority functional groups are treated as substituents. The root name is established by identifying the longest carbon chain or a ring containing a functional group. Remove the “e” from the normal ‘ane’, ‘ene’, or ‘yne’ ending and add the suffix that corresponds to the highest-priority functional group. If ‘ester’ is present as the highest priority group attached directly to the ring, both the ring and the functional group establish the root name. The ring is named first followed by ‘carboxylate’. The group attached to O atom is written as a prefix to the root name.

Number the carbon chain in a way that the functional group and the substituents attached gets the lowest number. The position of functional group and substituents on parent chain or ring is indicated by the respective locant number just before the suffix. The substituent groups are written in alphabetical order when writing the IUPAC name.

Interpretation Introduction

(c)

Interpretation:

For the given compound, the IUPAC name is to be assigned.

Concept introduction:

In naming organic compounds, the functional groups other than the highest priority functional groups are treated as substituents. The root name is established by identifying the longest carbon chain or a ring containing a functional group. Remove the “e” from the normal ‘ane’, ‘ene’, or ‘yne’ ending and add the suffix that corresponds to the highest-priority functional group. Number the carbon chain in a way that the functional group and the substituents attached gets the lowest number. The position of functional group and substituents on parent chain or ring is indicated by the respective locant number just before the suffix. The substituent groups are written in alphabetical order when writing the IUPAC name. The stereochemistry at the chiral center is determined by assigning the priorities to the groups attached to the chiral center on the basis of the atomic number of directly bonded atom. If the sequence of priority order $\text{1}\to \text{2}\to \text{3}$ is clockwise, the absolute configuration is $\text{R}$, and if it is counterclockwise, the absolute configuration is $\text{S}$.

Interpretation Introduction

(d)

Interpretation:

For the given compound, the IUPAC name is to be assigned.

Concept introduction:

In naming organic compounds, the functional groups other than the highest priority functional groups are treated as substituents. The root name is established by identifying the longest carbon chain or a ring containing a functional group. Remove the “e” from the normal ‘ane’, ‘ene’, or ‘yne’ ending and add the suffix that corresponds to the highest-priority functional group. If ‘ester’ is present as the highest priority group attached directly to the ring, both the ring and the functional group established the root name. The ring is named first followed by ‘carboxylate’. The group attached to O atom is written as a prefix to the root name.

Number the carbon chain in a way that the functional group and the substituents attached gets the lowest number. The position of functional group and substituents on parent chain or ring is indicated by the respective locant number just before the suffix. The substituent groups are written in alphabetical order when writing the IUPAC name.