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Ph. CH3 Ph-P=C Ph A CH3 B Give all 2 products AICI3

Ph. CH3 Ph-P=C Ph A CH3 B Give all 2 products AICI3

Chemistry
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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Provide the major organic product(s) for the reaction shown below
### Electrophilic Aromatic Substitution Reaction with Benzene: In this sequence of reactions, benzene is subjected to two main chemical transformations to produce final products. 1. **Step 1: Friedel-Crafts Acylation Reaction** - **Reactants:** Benzene, acetyl chloride (CH₃COCl), and aluminum chloride (AlCl₃) - **Reaction:** The benzene ring reacts with acetyl chloride in the presence of aluminum chloride (a Lewis acid catalyst) to form an acylated benzene compound. This is an example of an electrophilic aromatic substitution reaction where an acyl group (R-CO) is introduced into the aromatic ring. - **Product (A):** The product of this reaction is acetophenone, where the benzene ring is bonded to a carbonyl group with a methyl group attached. 2. **Step 2: Wittig Reaction** - **Reactants:** Compound A (acetophenone) and a Wittig reagent [Ph₃P=CH₂] containing a triphenylphosphine and a methylene group. - **Reaction:** The Wittig reaction involves the reaction of a carbonyl compound (acetophenone) with the Wittig reagent to form an alkene. Specifically, the carbonyl carbon of acetophenone reacts with the methylene group of the Wittig reagent to form a double bond (C=C). - **Products (B):** The products of this reaction are alkenes. More specifically, in this case, the reaction yields: - Compound 1: A trans-alkene where one side of the double bond is a phenyl group and the other side corresponds to a methyl group derived from the original acetyl group. - Compound 2: A cis-alkene similarly substituted as the trans isomer. ### Explanation Summary - **Graph/Diagram Analysis:** - The initial reactant, benzene, is then reacted with acetyl chloride (an acyl chloride) in the presence of aluminum chloride (AlCl₃) to produce acylated benzene (compound A). - Compound A then undergoes a Wittig reaction with a specified Wittig reagent to produce two different products (trans and cis forms) (compound B). - **Educational Perspective:** - The process demonstrates key concepts of organic chemistry, including electrophilic aromatic substitution, Friedel
Transcribed Image Text:### Electrophilic Aromatic Substitution Reaction with Benzene: In this sequence of reactions, benzene is subjected to two main chemical transformations to produce final products. 1. **Step 1: Friedel-Crafts Acylation Reaction** - **Reactants:** Benzene, acetyl chloride (CH₃COCl), and aluminum chloride (AlCl₃) - **Reaction:** The benzene ring reacts with acetyl chloride in the presence of aluminum chloride (a Lewis acid catalyst) to form an acylated benzene compound. This is an example of an electrophilic aromatic substitution reaction where an acyl group (R-CO) is introduced into the aromatic ring. - **Product (A):** The product of this reaction is acetophenone, where the benzene ring is bonded to a carbonyl group with a methyl group attached. 2. **Step 2: Wittig Reaction** - **Reactants:** Compound A (acetophenone) and a Wittig reagent [Ph₃P=CH₂] containing a triphenylphosphine and a methylene group. - **Reaction:** The Wittig reaction involves the reaction of a carbonyl compound (acetophenone) with the Wittig reagent to form an alkene. Specifically, the carbonyl carbon of acetophenone reacts with the methylene group of the Wittig reagent to form a double bond (C=C). - **Products (B):** The products of this reaction are alkenes. More specifically, in this case, the reaction yields: - Compound 1: A trans-alkene where one side of the double bond is a phenyl group and the other side corresponds to a methyl group derived from the original acetyl group. - Compound 2: A cis-alkene similarly substituted as the trans isomer. ### Explanation Summary - **Graph/Diagram Analysis:** - The initial reactant, benzene, is then reacted with acetyl chloride (an acyl chloride) in the presence of aluminum chloride (AlCl₃) to produce acylated benzene (compound A). - Compound A then undergoes a Wittig reaction with a specified Wittig reagent to produce two different products (trans and cis forms) (compound B). - **Educational Perspective:** - The process demonstrates key concepts of organic chemistry, including electrophilic aromatic substitution, Friedel
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