(a)
Interpretation:
The mechanism for the given reaction is to be drawn, and the major product is to be predicted.
Concept introduction:
Answer to Problem 17.47P
The mechanism for the given reaction is drawn below:
The major product of the given reaction is
Explanation of Solution
The given reaction is
In the given reaction, the starting material is a cyclic
An alkoxide ion, on acid workup, forms uncharged alcohol as the final product.
Thus, the major product of the given reaction is
Ketones, when treated with Grignard reagent, produce tertiary alcohol as the final product.
(b)
Interpretation:
The mechanism for the given reaction is to be drawn, and the major product is to be predicted.
Concept introduction:
Organometallic compounds have a polar covalent
Answer to Problem 17.47P
The mechanism for the given reaction is drawn below:
The major product of the given reaction is
Explanation of Solution
The given reaction is
In the given reaction, the starting material is an
An alkoxide ion, on acid workup, forms uncharged alcohol as the final product.
Thus, the major product of the given reaction is
Ketones, when treated with Grignard reagent, produce tertiary alcohol as the final product.
(c)
Interpretation:
The mechanism for the given reaction is to be drawn, and the major product for the same reaction is to be predicted.
Concept introduction:
Although
Answer to Problem 17.47P
The mechanism for the given reaction is drawn below:
The major product of the given reaction is
Explanation of Solution
The given reaction is
Each
The first step of the reaction is the attack of the nucleophile
The immediate product of carboxylation is a carboxylate ion, which is subsequently protonated through an acid workup to yield a carboxylic acid.
Thus, the major product of the given reaction is
The Grignard reagent adds across the
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Chapter 17 Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
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