Question 1

What is (are) the major organic product(s) obtained from the following reaction?   1.(2R,3R)-dibromobutane
2)(2S,3S)-dibromobutane
3)meso-2,3-dibromobutane

Accepted Answer

A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2 
A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2

Question 2

What is the major organic product obtained from the following reaction?

Accepted Answer

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

Question 3

What is (are) the major organic product(s) obtained from the following reaction?

Accepted Answer

A) only 1 
B) only 2 
C) only 3 
D) only 2 and 3 
A) only 1 
B) only 2 
C) only 3 
D) only 2 and 3

Question 4

Consider the following reactions.   Pathway ___ involves a 1,2-shift.

Accepted Answer

The answer of Consider the following reactions.   Pathway...

Question 5

What is the major organic product obtained from the following reaction?

Accepted Answer

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

Question 6

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 7

_____________is the starting material required to produce 3-methyl-1-butanol using the hydroboration-oxidation reaction. (Enter an IUPAC name.)

Accepted Answer

The answer of _____________is the starting material required to produce...

Question 8

What type of reaction mechanism accounts for the reaction of an alkene with HBr to give an alkyl bromide?

Accepted Answer

A) nucleophilic addition 
B) electrophilic addition 
C) radical addition 
D) elimination 
A) nucleophilic addition 
B) electrophilic addition 
C) radical addition 
D) elimination

Question 9

What type of reactive intermediate is formed in the reaction of an alkene with aqueous acid to give an alcohol?

Accepted Answer

A) carbocation 
B) carbanion 
C) radical 
D) carbene 
A) carbocation 
B) carbanion 
C) radical 
D) carbene

Question 10

Which of the following reactions of alkenes takes place with syn stereospecificity?

Accepted Answer

A) addition of bromine (treatment with Br2) 
B) hydrogenation (treatment with H2/Pt) 
C) addition of HBr (treatment with HBr) 
D) acid-catalyzed hydration (treatment with aqueous H2SO4) 
A) addition of bromine (treatment with Br2) 
B) hydrogenation (treatment with H2/Pt) 
C) addition of HBr (treatment with HBr) 
D) acid-catalyzed hydration (treatment with aqueous H2SO4)

Question 11

What is (are) the major organic product(s) obtained from the following reaction?   1.(2R,3R)-dibromobutane 2.(2S,3S)-dibromobutane
3)meso-2,3-dibromobutane

Accepted Answer

A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2 
A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2

Question 12

What is the best choice of reagent(s) to perform the following transformation?

Accepted Answer

The answer of What is the best choice of reagent(s)...

Question 13

The reaction of methylpropene with HBr in ether gives one of the two products below as the major product. Answer the following question(s) about this reaction.  
-Product _____ would have a higher energy transition state for the formation of the intermediate leading to it.

Accepted Answer

The answer of The reaction of methylpropene with HBr in...

Question 14

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 15

What is the best choice of reagent(s) to perform the following transformation?

Accepted Answer

A) O3; followed by (CH3)2S 
B) Hg(OAc)2 and H2O; followed by NaBH4 
C) BH3; followed by H2O2, NaOH 
D) OsO4; followed by NaHSO3 
A) O3; followed by (CH3)2S 
B) Hg(OAc)2 and H2O; followed by NaBH4 
C) BH3; followed by H2O2, NaOH 
D) OsO4; followed by NaHSO3

Question 16

What is the best choice of reagent(s) to perform the following transformation?

Accepted Answer

The answer of What is the best choice of reagent(s)...

Question 17

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 18

What is (are) the major organic product(s) obtained from the following reaction?   1.(R)-2-bromo-3-methylbutane
2)(S)-2-bromo-3-methylbutane
3)2-bromo-2-methylbutane"

Accepted Answer

A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2 
A) only 1 
B) only 2 
C) only 3 
D) only 1 and 2

Exam 6: Reactions of Alkenes

What is (are) the major organic product(s) obtained from the following reaction? 1.(2R,3R)-dibromobutane 2)(2S,3S)-dibromobutane 3)meso-2,3-dibromobutane

What is the major organic product obtained from the following reaction?

What is (are) the major organic product(s) obtained from the following reaction?

Consider the following reactions. Pathway ___ involves a 1,2-shift.

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

_____________is the starting material required to produce 3-methyl-1-butanol using the hydroboration-oxidation reaction. (Enter an IUPAC name.)

What type of reaction mechanism accounts for the reaction of an alkene with HBr to give an alkyl bromide?

What type of reactive intermediate is formed in the reaction of an alkene with aqueous acid to give an alcohol?

Which of the following reactions of alkenes takes place with syn stereospecificity?

What is (are) the major organic product(s) obtained from the following reaction? 1.(2R,3R)-dibromobutane 2.(2S,3S)-dibromobutane 3)meso-2,3-dibromobutane

What is the best choice of reagent(s) to perform the following transformation?

The reaction of methylpropene with HBr in ether gives one of the two products below as the major product. Answer the following question(s) about this reaction. -Product _____ would have a higher energy transition state for the formation of the intermediate leading to it.

What is the major organic product obtained from the following reaction?

What is the best choice of reagent(s) to perform the following transformation?

What is the best choice of reagent(s) to perform the following transformation?

What is the major organic product obtained from the following reaction?

What is (are) the major organic product(s) obtained from the following reaction? 1.(R)-2-bromo-3-methylbutane 2)(S)-2-bromo-3-methylbutane 3)2-bromo-2-methylbutane"

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

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