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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Question 46 can I get help?
Transcribed Image Text:**Title: Catalytic Hydrogenation of a Hydrocarbon**
**Objective:**
Determine the product of a hydrogenation reaction involving an alkyl benzene with a catalyst under specific conditions.
**Reaction Details:**
- **Substrate:** The reactant is isopropylbenzene (cumene), characterized by an isopropyl group attached to a benzene ring.
- **Catalyst:** Rhodium on carbon (Rh/C) is used as the catalytic agent to facilitate the reaction.
- **Reagents and Conditions:**
- Hydrogen gas (\(H_2\)) is used to reduce the compound.
- The reaction is carried out under heat and pressure to enhance the rate and efficiency.
**Process Overview:**
This reaction involves the catalytic hydrogenation of the aromatic ring and any associated alkenes or alkynes in the starting material. The application of heat and pressure helps in overcoming the aromatic stability of the benzene ring, aiding in its conversion to a cyclohexane derivative.
**Expected Product:**
The expected product is cyclohexane, fully hydrogenated, with the isopropyl group remaining intact attached to the newly formed cyclohexane ring.
**Conclusion:**
This reaction illustrates the use of catalytic hydrogenation to convert aromatic compounds into saturated hydrocarbons, maintaining the alkyl substituents. This process is significant in industrial applications where modified hydrocarbons are required.
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