Question 1

Which heterocyclic ring is present in guanine DNA base?

Accepted Answer

A) pyrrole 
B) purine 
C) pyrimidine 
D) porphyrin 
E) pyridine 
A) pyrrole 
B) purine 
C) pyrimidine 
D) porphyrin 
E) pyridine

Question 2

Draw 4-methylisoquinoline.

Accepted Answer

The answer of Draw 4-methylisoquinoline....

Question 3

Which of the following is the structure for N-methylpiperidine?

Accepted Answer

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

Question 4

Provide the IUPAC name of the compound shown.

Accepted Answer

N-propyl-5

Question 5

The major organic product in the following reaction

Accepted Answer

A) is an N-acyl pyrrolidine. 
B) results from an electrophilic aromatic substitution reaction. 
C) results from a nucleophilic aromatic substitution reaction. 
D) is a m-disubstituted benzene derivative. 
E) both B and D 
A) is an N-acyl pyrrolidine. 
B) results from an electrophilic aromatic substitution reaction. 
C) results from a nucleophilic aromatic substitution reaction. 
D) is a m-disubstituted benzene derivative. 
E) both B and D

Question 6

Name the following structure.

Accepted Answer

A) adenine 
B) guanine 
C) cytosine 
D) uracil 
E) thymine 
A) adenine 
B) guanine 
C) cytosine 
D) uracil 
E) thymine

Question 7

Give the major product for the following reaction.

Accepted Answer

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

Question 8

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 9

Give all organic products for the following reaction.You may choose more than one answer.

Accepted Answer

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

Question 10

Provide the structure of the major organic product in the reaction below.

Accepted Answer

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

Question 11

Provide the major organic product of the reaction shown.

Accepted Answer

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

Question 12

Provide the structure of the major organic product in the reaction below.

Accepted Answer

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

Question 13

What is the major alkene formed in the following Hofmann elimination?

Accepted Answer

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

Question 14

An unknown compound has the formula C8H10OS,and is known to contain a thiophene ring.The proton NMR spectrum of this compound is: δ0.98,triplet,3H
Δ1)74,multiplet,2H
Δ2)80,triplet,2H
Δ7)04,multiplet,1H
Δ7)55,multiplet,2H
What is the structure of this unknown?

Accepted Answer

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

Question 15

What is the 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 16

Circle the stronger base in the pair below,and briefly explain your choice.

Accepted Answer

Diethylamine is the stronger b

Question 17

What is the stereochemistry of the product in the acid hydrolysis of trans-2,3-epoxybutane?

Accepted Answer

The answer of What is the stereochemistry of the product...

Question 18

Propose a plausible mechanism for the following reaction.

Accepted Answer

The answer of Propose a plausible mechanism for the following...

Question 19

Give the major product for the following reaction.

Accepted Answer

The answer of Give the major product for the following...

Question 20

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

Exam 19: More About Amines - Reactions of Heterocylic Compounds

Which heterocyclic ring is present in guanine DNA base?

Draw 4-methylisoquinoline.

Which of the following is the structure for N-methylpiperidine?

Provide the IUPAC name of the compound shown.

The major organic product in the following reaction

Name the following structure.

Give the major product for the following reaction.

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

Give all organic products for the following reaction.You may choose more than one answer.

Provide the structure of the major organic product in the reaction below.

Provide the major organic product of the reaction shown.

Provide the structure of the major organic product in the reaction below.

What is the major alkene formed in the following Hofmann elimination?

An unknown compound has the formula C8H10OS,and is known to contain a thiophene ring.The proton NMR spectrum of this compound is: δ0.98,triplet,3H Δ1)74,multiplet,2H Δ2)80,triplet,2H Δ7)04,multiplet,1H Δ7)55,multiplet,2H What is the structure of this unknown?

What is the product of the following reaction?

Circle the stronger base in the pair below,and briefly explain your choice.

What is the stereochemistry of the product in the acid hydrolysis of trans-2,3-epoxybutane?

Propose a plausible mechanism for the following reaction.

Give the major product for the following reaction.

What is the major product of the following reaction?

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 of Aldehydes and Ketones

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

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

An unknown compound has the formula C₈H₁₀OS,and is known to contain a thiophene ring.The proton NMR spectrum of this compound is: δ0.98,triplet,3H Δ1)74,multiplet,2H Δ2)80,triplet,2H Δ7)04,multiplet,1H Δ7)55,multiplet,2H What is the structure of this unknown?