The image depicts a chemical reaction involving a cyclopentanone ring with one hydroxyl group (OH) and one carbonyl group (C=O) on adjacent carbons.**Reaction Steps:**1. **Reactant:** The starting compound is a cyclopentanone derivative.2. **Reagent 1:** 1 equivalent of phenylmagnesium bromide (PhMgBr), a Grignard reagent, is added. This reagent typically reacts with carbonyl groups.3. **Reagent 2:** Water (H₂O) is added in a subsequent step to quench the reaction.**Explanation:**- The Grignard reagent (PhMgBr) adds to the carbonyl group of the cyclopentanone. The carbon atom of the carbonyl group becomes a new stereocenter, forming a secondary alcohol after water is added to protonate the alkoxide intermediate.- This reaction is an example of a nucleophilic addition where the Grignard reagent acts as a nucleophile and the carbonyl carbon as an electrophile.This is a classic organic reaction used in synthesizing alcohols from ketones or aldehydes.

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Answered: HO 1) 1 eq. PhMgBr 2) H2O

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Chemistry

HO 1) 1 eq. PhMgBr 2) H2O

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

The image depicts a chemical reaction involving a cyclopentanone ring with one hydroxyl group (OH) and one carbonyl group (C=O) on adjacent carbons.

**Reaction Steps:**

1. **Reactant:** The starting compound is a cyclopentanone derivative.
2. **Reagent 1:** 1 equivalent of phenylmagnesium bromide (PhMgBr), a Grignard reagent, is added. This reagent typically reacts with carbonyl groups.
3. **Reagent 2:** Water (H₂O) is added in a subsequent step to quench the reaction.

**Explanation:**

- The Grignard reagent (PhMgBr) adds to the carbonyl group of the cyclopentanone. The carbon atom of the carbonyl group becomes a new stereocenter, forming a secondary alcohol after water is added to protonate the alkoxide intermediate.
- This reaction is an example of a nucleophilic addition where the Grignard reagent acts as a nucleophile and the carbonyl carbon as an electrophile.

This is a classic organic reaction used in synthesizing alcohols from ketones or aldehydes.

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