Question 1

What is the major product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 2

Conversion of aldehydes and ketones to imines is an acid-catalyzed process.Explain why this conversion is actually hindered by the presence of too much acid.

Accepted Answer

At very low pH,much

Question 3

Give three different sets of reagents (a carbonyl compound and a Grignard reagent)that could be used to prepare the following compound.

Accepted Answer

The answer of Give three different sets of reagents (a...

Question 4

The compound shown below can form a hemiacetal by reacting with itself in solution.   What is the structure of this hemiacetal?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 5

Provide the major organic product(s)of the reaction below.

Accepted Answer

The answer of Provide the major organic product(s)of the reaction...

Question 6

List the following carbonyl compounds in order of decreasing reactivity toward nucleophiles: ester,acid chloride,amide,aldehyde,ketone.

Accepted Answer

acid chlor

Question 7

Give the organic products for the reaction.

Accepted Answer

The answer of Give the organic products for the reaction....

Question 8

Give the products obtained from the following Wittig reaction.Show both stereoisomers.

Accepted Answer

The answer of Give the products obtained from the following...

Question 9

What is the major product when (CH3)2CHCH2CH2Br is subjected to the following reaction sequence: 1.Mg,ether 2.CO2 3.H3O+ ?

Accepted Answer

A) 3-methyl-1-butanol 
B) 2-methyl-2-butanol 
C) 4-methyl-1-pentanol 
D) 4-methylpentanoic acid 
A) 3-methyl-1-butanol 
B) 2-methyl-2-butanol 
C) 4-methyl-1-pentanol 
D) 4-methylpentanoic acid

Question 10

Provide the structure of the diethyl acetal of butanal.

Accepted Answer

The answer of Provide the structure of the diethyl acetal...

Question 11

Provide the structure of the acetal that results when 4-heptanone is dissolved in methanol containing an acid catalyst.

Accepted Answer

The answer of Provide the structure of the acetal that...

Question 12

Which of the following is most reactive towards Grignard's reagent PhMgBr?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 13

Which would be more appropriate as the reduction in the following sequence,a Clemmensen or a Wolff-Kishner? Explain.

Accepted Answer

Wolff-Kishner.The acidic condi

Question 14

Provide a detailed,stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH2CH2OH)to produce an acetal.

Accepted Answer

Question 15

Which of the following is an enamine?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 16

What is the major product of the following reaction?

Accepted Answer

A) I 
B) II 
C) III 
D) IV 
E) V 
A) I 
B) II 
C) III 
D) IV 
E) V

Question 17

Which carbonyl is more susceptible to nucleophilic attack,that of cyclohexanone or that of hexanal? Provide two reasons for your choice.

Accepted Answer

Hexanal.The partial positive charge on t

Question 18

Which of the following most typically characterizes the reactions of aldehydes and ketones?

Accepted Answer

A) electrophilic addition 
B) electrophilic substitution 
C) nucleophilic acyl substitution 
D) nucleophilic addition 
E) radical addition 
A) electrophilic addition 
B) electrophilic substitution 
C) nucleophilic acyl substitution 
D) nucleophilic addition 
E) radical addition

Question 19

What functional groups are featured in Vanillin shown below?

Accepted Answer

A) ether,alcohol and aldehyde 
B) ether,alcohol and ketone 
C) ether,alcohol and carboxylic acid 
D) acetal,alcohol and ketone 
E) acetal,alcohol and aldehyde 
A) ether,alcohol and aldehyde 
B) ether,alcohol and ketone 
C) ether,alcohol and carboxylic acid 
D) acetal,alcohol and ketone 
E) acetal,alcohol and aldehyde

Question 20

Provide the major organic product of the following.

Accepted Answer

The answer of Provide the major organic product of the...

Exam 16: Reactions of Aldehydes and Ketones

What is the major product of the following reaction?

Conversion of aldehydes and ketones to imines is an acid-catalyzed process.Explain why this conversion is actually hindered by the presence of too much acid.

Give three different sets of reagents (a carbonyl compound and a Grignard reagent)that could be used to prepare the following compound.

The compound shown below can form a hemiacetal by reacting with itself in solution. What is the structure of this hemiacetal?

Provide the major organic product(s)of the reaction below.

List the following carbonyl compounds in order of decreasing reactivity toward nucleophiles: ester,acid chloride,amide,aldehyde,ketone.

Give the organic products for the reaction.

Give the products obtained from the following Wittig reaction.Show both stereoisomers.

What is the major product when (CH3)2CHCH2CH2Br is subjected to the following reaction sequence: 1.Mg,ether 2.CO2 3.H3O+ ?

Provide the structure of the diethyl acetal of butanal.

Provide the structure of the acetal that results when 4-heptanone is dissolved in methanol containing an acid catalyst.

Which of the following is most reactive towards Grignard's reagent PhMgBr?

Which would be more appropriate as the reduction in the following sequence,a Clemmensen or a Wolff-Kishner? Explain.

Provide a detailed,stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH2CH2OH)to produce an acetal.

Which of the following is an enamine?

What is the major product of the following reaction?

Which carbonyl is more susceptible to nucleophilic attack,that of cyclohexanone or that of hexanal? Provide two reasons for your choice.

Which of the following most typically characterizes the reactions of aldehydes and ketones?

What functional groups are featured in Vanillin shown below?

Provide the major organic product of the following.

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 - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic 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

Pericyclic Reactions

Filters

What is the major product when (CH₃)₂CHCH₂CH₂Br is subjected to the following reaction sequence: 1.Mg,ether 2.CO₂ 3.H₃O⁺?

Provide a detailed,stepwise mechanism for the acid-catalyzed reaction of 2-butanone with ethylene glycol (HOCH₂CH₂OH)to produce an acetal.