Exam 25: Electrophilic Aromatic Substitution 2: Substitution on Mono- and Disubstituted Benzene and Other Aromatic Rings

Predict the two major products of the reaction below.

(Short Answer)

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Question 41

Devise a synthesis to carry out the following transformation.

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Question 42

Draw the mechanism for the reaction below,including the structure of the most stable intermediate,and predict the major product.Label each step,and indicate the rate-determining step.

(Short Answer)

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Question 43

Halogen substituents are deactivating but are ortho/para directors.Explain.

(Essay)

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Question 44

Draw the most stable resonance structure of the intermediate formed in the reaction below,and predict the major product(s).

(Short Answer)

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Question 45

Draw a resonance structure to explain why anisole undergoes electrophilic aromatic nitration reactions at a higher rate than benzene.

(Short Answer)

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Question 46

Which of the following is an intermediate in the mechanism for the reaction below?

(Multiple Choice)

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Question 47

Which of the following would undergo nitration at the highest rate?

(Multiple Choice)

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Question 48

A student proposes the following synthesis to produce ethylbenzene as the major product.Explain the error in this proposed synthesis,and suggest an alternative synthetic route.

(Essay)

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Question 49

Which structure represents a major intermediate in the chlorination of nitrobenzene?

(Multiple Choice)

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Question 50

Showing 41 - 50 of 50

Predict the two major products of the reaction below.

Devise a synthesis to carry out the following transformation.

Draw the mechanism for the reaction below,including the structure of the most stable intermediate,and predict the major product.Label each step,and indicate the rate-determining step.

Halogen substituents are deactivating but are ortho/para directors.Explain.

Draw the most stable resonance structure of the intermediate formed in the reaction below,and predict the major product(s).

Draw a resonance structure to explain why anisole undergoes electrophilic aromatic nitration reactions at a higher rate than benzene.

Which of the following is an intermediate in the mechanism for the reaction below?

Which of the following would undergo nitration at the highest rate?

A student proposes the following synthesis to produce ethylbenzene as the major product.Explain the error in this proposed synthesis,and suggest an alternative synthetic route.

Which structure represents a major intermediate in the chlorination of nitrobenzene?

Atomic and Molecular Structure

Interchapter: Nomenclature 1-4

Interchapter 1molecular Orbital Theory and Chemical Reactions

Three-Dimensional Geometry,intermolecular Interactions,and Physical Properties

Orbital Interactions 1: Hybridization and Two-Center Molecular Orbitals

Isomerism 1: Conformational and Constitutional Isomers

Isomerism 2: Chirality,enantiomers,and Diastereomers

The Proton Transfer Reaction: an Introduction to Mechanisms,thermodynamics,and Charge Stability

An Overview of the Most Common Elementary Steps

An Introduction to Multistep Mechanisms: Sn1 and E1 Reactions

Nucleophilic Substitution and Elimination Reactions 1: Competition Among Sn2,sn1,e2,and E1 Reactions

Nucleophilic Substitution and Elimination Reactions 2: Reactions That Are Useful for Synthesis

Electrophilic Addition to Nonpolar Π Bonds 1: Addition of a Brønsted Acid

Electrophilic Addition to Nonpolar Π Bonds 2: Reactions Involving Cyclic Transition States

Organic Synthesis 1: Beginning Concepts

Orbital Interactions 2: Extended Π Systems,conjugation,and Aromaticity

Structure Determination 1: Ultravioletvisible and Infrared Spectroscopies

Structure Determination 2: Nuclear Magnetic Resonance Spectroscopy and Mass Spectrometry

Nucleophilic Addition to Polar Π Bonds 1: Addition of Strong Nucleophiles

Nucleophilic Addition to Polar Π Bonds 2: Addition of Weak Nucleophiles and Acid and Base Catalysis

Organic Synthesis 2: Intermediate Topics in Synthesis Design,and Useful Reduction and Oxidation Reactions

Nucleophilic Additionelimination Reactions 1: the General Mechanism Involving Strong Nucleophiles

Nucleophilic Additionelimination Reactions 2: Weak Nucleophiles

Electrophilic Aromatic Substitution 1: Substitution on Benzene; Useful Accompanying Reactions

The Dielsalder Reaction and Other Pericyclic Reactions

Reactions Involving Free Radicals

Polymers

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