Chapter 7.2, Problem 1CC

(a)

Interpretation Introduction

Interpretation:

The systematic name for the given molecules should be identified.

Concept Introduction:

Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix, suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule. It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc...

For alkenes, suffix will be ‘ene’.

Root word represents the longest continuous carbon skeleton of the organic molecule.

When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo, if it is two cyclic structure combined then prefixed with bicyclo.

Two stereoisomers are there for an alkene molecule. It depends upon the location of bulky group (or high molecular weight) on the double bonded carbon atoms. If the bulky groups are in same side then it is cis-isomer. If the bulky groups are in opposite side then it is trans-isomer.

(b)

Interpretation Introduction

Interpretation:

The systematic name for the given molecules should be identified.

Concept Introduction:

Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule. It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc...

For alkenes, suffix will be ‘ene’.

Root word represents the longest continuous carbon skeleton of the organic molecule.

When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo, if it is two cyclic structure combined then prefixed with bicyclo.

Two stereoisomers are there for an alkene molecule. It depends upon the location of bulky group (or high molecular weight) on the double bonded carbon atoms. If the bulky groups are in same side then it is cis-isomer. If the bulky groups are in opposite side then it is trans-isomer.

(c)

Interpretation Introduction

Interpretation:

The systematic name has to be identified for the given organic molecule.

Concept Introduction:

Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix suffix and root word.

R and S nomenclature: it is used to assign the molecule using CIP rules.

The CIP rules are as follows:

Select the chiral carbon and assign the numbers according to the decreasing atomic mass of atoms attached to it.

If the numbering follows clockwise direction then the molecule is termed as R and if it follows anti-clockwise direction then molecule is termed as S.

Rules for assigning $\left(R,S\right)$- configuration:

• Prioritize the four groups around the chiral center according to atomic number.
• Orient the chiral center such that the least priority substituent is pointing away from the viewer.
• Trace the path of priorities; is the path traced is clockwise, the chiral center is assigned as R. If the path is traced in anti-clockwise, the chiral center is assigned as S.

(d)

Interpretation Introduction

Interpretation:

The systematic name has to be identified for the given organic molecule.

Concept Introduction:

Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix suffix and root word.

R and S nomenclature: it is used to assign the molecule using CIP rules.

The CIP rules are as follows:

Select the chiral carbon and assign the numbers according to the decreasing atomic mass of atoms attached to it.

If the numbering follows clockwise direction then the molecule is termed as R and if it follows anti-clockwise direction then molecule is termed as S.

Rules for assigning $\left(R,S\right)$- configuration:

• Prioritize the four groups around the chiral center according to atomic number.
• Orient the chiral center such that the least priority substituent is pointing away from the viewer.

Trace the path of priorities; is the path traced is clockwise, the chiral center is assigned as R. If the path is traced in anti-clockwise, the chiral center is assigned as S

(e)

Interpretation Introduction

Interpretation:

The systematic name has to be identified for the given organic molecule.

Concept Introduction:

Systematic Name: It is a standardized name given for a chemical compound in systematic manner. Any organic molecule can be named by using IUPAC (International Union for Pure and applied chemistry) rules. IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule. It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc...

For alkenes, suffix will be ‘ene’.

Root word represents the longest continuous carbon skeleton of the organic molecule.

(f)

Interpretation Introduction

Interpretation:

The systematic name has to be identified for the given organic molecule.

Concept Introduction:

R and S nomenclature: it is used to assign the molecule using CIP rules.

The CIP rules are as follows:

Select the chiral carbon and assign the numbers according to the decreasing atomic mass of atoms attached to it.

If the numbering follows clockwise direction then the molecule is termed as R and if it follows anti-clockwise direction then molecule is termed as S.

Rules for assigning $\left(R,S\right)$- configuration:

• Prioritize the four groups around the chiral center according to atomic number.
• Orient the chiral center such that the least priority substituent is pointing away from the viewer.

Trace the path of priorities; is the path traced is clockwise, the chiral center is assigned as R. If the path is traced in anti-clockwise, the chiral center is assigned as S

(g)

Interpretation Introduction

Interpretation:

The systematic name has to be identified for the given organic molecule.

Concept Introduction:

R and S nomenclature: it is used to assign the molecule using CIP rules.

The CIP rules are as follows:

Select the chiral carbon and assign the numbers according to the decreasing atomic mass of atoms attached to it.

If the numbering follows clockwise direction then the molecule is termed as R and if it follows anti-clockwise direction then molecule is termed as S.

Rules for assigning $\left(R,S\right)$- configuration:

• Prioritize the four groups around the chiral center according to atomic number.
• Orient the chiral center such that the least priority substituent is pointing away from the viewer.

Trace the path of priorities; is the path traced is clockwise, the chiral center is assigned as R. If the path is traced in anti-clockwise, the chiral center is assigned as S.

(h)

Interpretation Introduction

Interpretation:

The systematic name has to be identified for the given organic molecule.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry).IUPAC name consists of three parts, namely Prefix, suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule. It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc...

For alkenes, suffix will be ‘ene’.

Root word represents the longest continuous carbon skeleton of the organic molecule.

When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo, if it is two cyclic structure combined then prefixed with bicyclo.

Two stereoisomers are there for an alkene molecule. It depends upon the location of bulky group (or high molecular weight) on the double bonded carbon atoms. If the bulky groups are in same side then it is cis-isomer. If the bulky groups are in opposite side then it is trans-isomer.