(a)
Interpretation:
Synthesis of the given target molecule from phenylmethanol (benzyl alcohol) is to be determined.
Concept introduction:
Acid is converted to ester group by esterification reaction with the help of a strong base like
Answer to Problem 19.75P
Synthesis of the target molecule from phenylmethanol (benzyl alcohol) is
Explanation of Solution
Structure of the target molecule is
In the first step of the reaction, phenylmethanol (benzyl alcohol) is treated with oxidizing agent
In the second step of the reaction, benzoic acid undergoes esterification reaction. In this step, benzoic acid is first treated with a strong base like
The complete synthesis of the target molecule is as shown below.
By using the functional group conversion reactions, synthesis of the target molecule is determined.
(b)
Interpretation:
Synthesis of the given target molecule from phenylmethanol (benzyl alcohol) is to be determined.
Concept introduction:
For the conversion of alcohol group to Grignard reagent, alcohol (bad leaving group) is treated with
When Grignard reagent is reacted with ketone, in presence of acidic condition
For the removal of water, tertiary alcohol is treated with conc.
The bromination reaction on alkene takes place in presence of
Answer to Problem 19.75P
Synthesis of the target molecule from phenylmethanol (benzyl alcohol) is
Explanation of Solution
Structure of the target molecule is
In the first step, the formation of Grignard reagent takes place. In this step, benzyl alcohol is treated with
The complete synthesis of the target molecule is as shown below.
By using the functional group conversion reactions, the synthesis of the target molecule is determined.
(c)
Interpretation:
Synthesis of the given target molecule from phenylmethanol (benzyl alcohol) is to be determined.
Concept introduction:
Grignard reagent, in presence of acidic condition, is used for the conversion of aldehyde or ketone to alcohol.
For the removal of water, tertiary alcohol is treated with conc.
Reaction of alkene with diazomethane in presence of heat results in the formation of cyclopropane ring.
Answer to Problem 19.75P
Synthesis of the target molecule from phenylmethanol (benzyl alcohol) is
Explanation of Solution
Structure of the target molecule is
In the first step, benzyl alcohol is treated with the oxidizing agent
In the second step, benzaldehyde is treated with Grignard reagent
In the third step, the presence of conc.
In the last step, alkene is treated with diazomethane in presence of heat that results in the formation of the cyclopropane ring.
The complete synthesis of the target molecule is as shown below.
By using the functional group conversion reactions, the synthesis of the target molecule is determined.
(d)
Interpretation:
Synthesis of the given target molecule from phenylmethanol (benzyl alcohol) is to be determined.
Concept introduction:
Grignard reagent, in presence of acidic condition, is used for the conversion of aldehyde or ketone to alcohol.
Answer to Problem 19.75P
Synthesis of the target molecule from phenylmethanol (benzyl alcohol) is
Explanation of Solution
Structure of the target molecule is
In the first step, benzyl alcohol is treated with the oxidizing agent
In the second step, benzaldehyde is treated with Grignard reagent
The complete synthesis of the target molecule is as shown below.
By using the functional group, conversion reactions synthesis of the target molecule is determined.
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