Chapter 7, Problem 35P

(a)

Interpretation Introduction

Interpretation:

Synthesis method of the given compound has to be given from the compound which have the same number of carbon atoms.

Concept Introduction:

Addition of water to alkynes in presence of acid:

Under acidic conditions, alkyne reacts with water to produce an enol which then immediately converts into ketone.  For terminal alkynes, there is a need of catalyst which is mercury.

The formed enol and ketone are called keto-enol tautomers.

Tautomerization: It is the process of inter conversion of tautomers and therefore the process can also be called as keto-enol tautomerization.

Hydroboration reaction:

It is the reaction in which an internal alkyne is converted into ketone.  The reagents used for the hydroboration oxidation reaction is either ${\text{BH}}_{\text{3}}\text{or}{\text{R}}_{\text{2}}\text{BH}$.

(b)

Interpretation Introduction

Interpretation:

Synthesis method of the given compound has to be given from the compound which have the same number of carbon atoms.

Concept Introduction:

Addition of water to alkynes in presence of acid:

Under acidic conditions, alkyne reacts with water to produce an enol which then immediately converts into ketone.  For terminal alkynes, there is a need of catalyst which is mercury.

The formed enol and ketone are called keto-enol tautomers.

Tautomerization: It is the process of inter conversion of tautomers and therefore the process can also be called as keto-enol tautomerization.

Hydroboration reaction:

It is the reaction in which an internal alkyne is converted into ketone.  The reagents used for the hydroboration oxidation reaction is either ${\text{BH}}_{\text{3}}\text{or}{\text{R}}_{\text{2}}\text{BH}$.

(c)

Interpretation Introduction

Interpretation:

Synthesis method of the given compound has to be given from the compound which have the same number of carbon atoms.

Concept Introduction:

Addition of water to alkynes in presence of acid:

Under acidic conditions, alkyne reacts with water to produce an enol which then immediately converts into ketone.  For terminal alkynes, there is a need of catalyst which is mercury.

The formed enol and ketone are called keto-enol tautomers.

Tautomerization: It is the process of inter conversion of tautomers and therefore the process can also be called as keto-enol tautomerization.

Hydroboration reaction:

It is the reaction in which an internal alkyne is converted into ketone.  The reagents used for the hydroboration oxidation reaction is either ${\text{BH}}_{\text{3}}\text{or}{\text{R}}_{\text{2}}\text{BH}$.