Question 1

Under what conditions would a 1,3-hydrogen shift occur?

Accepted Answer

A)  photochemical 
B)  thermal 
C)  suprafacial 
D)  A and C 
E)  B and C 
A)  photochemical 
B)  thermal 
C)  suprafacial 
D)  A and C 
E)  B and C D

Question 2

What is the product of the following thermal reaction?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    A

Question 3

Which type of sigmatropic rearrangement would accomplish the transformation shown here?

Accepted Answer

A)  1,2- 
B)  two 1,2- 
C)  1,3- 
D)  1,5- 
E)  two 1,5- 
A)  1,2- 
B)  two 1,2- 
C)  1,3- 
D)  1,5- 
E)  two 1,5- E

Question 4

Which type of sigmatropic rearrangement would accomplish the transformation shown here?

Accepted Answer

A)  1,3- 
B)  3,3- 
C)  2,3- 
D)  1,5- 
E)  1,7- 
A)  1,3- 
B)  3,3- 
C)  2,3- 
D)  1,5- 
E)  1,7-

Question 5

The following electrocyclic reaction must be ____________.

Accepted Answer

A)  thermal, disrotatory 
B)  thermal, conrotatory 
C)  photochemical, disrotatory 
D)  photochemical, conrotatory 
E)  B and D 
A)  thermal, disrotatory 
B)  thermal, conrotatory 
C)  photochemical, disrotatory 
D)  photochemical, conrotatory 
E)  B and D

Question 6

The following reaction is a(n) ____________.

Accepted Answer

A)  cycloaddition reaction 
B)  electrocyclic reaction 
C)  Diels-Alder reaction 
D)  Claisen rearrangement 
E)  A or C 
A)  cycloaddition reaction 
B)  electrocyclic reaction 
C)  Diels-Alder reaction 
D)  Claisen rearrangement 
E)  A or C

Question 7

Which of the following is an intramolecular reaction in which a new sigma bond is formed between the ends of a conjugated ? system?

Accepted Answer

A)  an electrocyclic reaction 
B)  a cycloaddition reaction 
C)  a sigmatropic reaction 
D)  a pericyclic reaction 
E)  the conservation of orbital theory 
A)  an electrocyclic reaction 
B)  a cycloaddition reaction 
C)  a sigmatropic reaction 
D)  a pericyclic reaction 
E)  the conservation of orbital theory

Question 8

How many nodes are between the nuclei in the ground-state LUMO of 1,3-butadiene?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 9

The following cycloaddition reaction can be described as ____________.

Accepted Answer

A)  4 + 4 thermal, antarafacial 
B)  4 + 4 thermal, suprafacial 
C)  4 + 4 photochemical, suprafacial 
D)  4 + 4 photochemical, antarafacial 
E)  A and C 
A)  4 + 4 thermal, antarafacial 
B)  4 + 4 thermal, suprafacial 
C)  4 + 4 photochemical, suprafacial 
D)  4 + 4 photochemical, antarafacial 
E)  A and C

Question 10

The following cycloaddition reaction can be described as ____________.

Accepted Answer

A)  2 + 2 thermal, antarafacial 
B)  2 + 3 thermal, antarafacial 
C)  2 + 3 photochemical, suprafacial 
D)  2 + 8 thermal, suprafacial 
E)  2 + 8 thermal, antarafacial 
A)  2 + 2 thermal, antarafacial 
B)  2 + 3 thermal, antarafacial 
C)  2 + 3 photochemical, suprafacial 
D)  2 + 8 thermal, suprafacial 
E)  2 + 8 thermal, antarafacial

Question 11

A Diels-Alder reaction is a(n) ____________.

Accepted Answer

A)  electrocyclic reaction 
B)  cycloaddition reaction 
C)  sigmatropic rearrangement 
D)  photochemical reaction 
E)  radical reaction 
A)  electrocyclic reaction 
B)  cycloaddition reaction 
C)  sigmatropic rearrangement 
D)  photochemical reaction 
E)  radical reaction

Under what conditions would a 1,3-hydrogen shift occur?

What is the product of the following thermal reaction?

Which type of sigmatropic rearrangement would accomplish the transformation shown here?

Which type of sigmatropic rearrangement would accomplish the transformation shown here?

The following electrocyclic reaction must be ____________.

The following reaction is a(n) ____________.

Which of the following is an intramolecular reaction in which a new sigma bond is formed between the ends of a conjugated ? system?

How many nodes are between the nuclei in the ground-state LUMO of 1,3-butadiene?

The following cycloaddition reaction can be described as ____________.

The following cycloaddition reaction can be described as ____________.

A Diels-Alder reaction is a(n) ____________.

Remembering General Chemistry Electronic Structure and Bonding

Acids and Bases Central to Understanding Organic Chemistry

An Introduction to Organic Compounds Nomenclature, Physical Properties, and Structure

Isomers the Arrangement of Atoms in Space

Alkenes Structure, Nomenclature, and an Introduction to Reactivity Thermodynamics and Kinetics

The Reactions of Alkenes the Stereochemistry of Addition Reactions

The Reactions of Alkynes an Introduction Tomultistep Synthesis

Delocalized Electrons Their Eff

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, Ethers,epoxides, Amines, and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry Infrared Spectroscopy Uv Vis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones More Reactions of Carboxylic Acid Derivatives

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines Reactions of Heterocyclic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids, Peptides, and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes,compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Filters

Exam 28: Pericyclic Reactions

Under what conditions would a 1,3-hydrogen shift occur?

What is the product of the following thermal reaction?

Which type of sigmatropic rearrangement would accomplish the transformation shown here?

Which type of sigmatropic rearrangement would accomplish the transformation shown here?

The following electrocyclic reaction must be ____________.

The following reaction is a(n) ____________.

Which of the following is an intramolecular reaction in which a new sigma bond is formed between the ends of a conjugated ? system?

How many nodes are between the nuclei in the ground-state LUMO of 1,3-butadiene?

The following cycloaddition reaction can be described as ____________.

The following cycloaddition reaction can be described as ____________.

A Diels-Alder reaction is a(n) ____________.

Remembering General Chemistry Electronic Structure and Bonding

Acids and Bases Central to Understanding Organic Chemistry

An Introduction to Organic Compounds Nomenclature, Physical Properties, and Structure

Isomers the Arrangement of Atoms in Space

Alkenes Structure, Nomenclature, and an Introduction to Reactivity Thermodynamics and Kinetics

The Reactions of Alkenes the Stereochemistry of Addition Reactions

The Reactions of Alkynes an Introduction Tomultistep Synthesis

Delocalized Electrons Their Eff

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, Ethers,epoxides, Amines, and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry Infrared Spectroscopy Uv Vis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones More Reactions of Carboxylic Acid Derivatives

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines Reactions of Heterocyclic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids, Peptides, and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes,compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Filters