Question 1

​Draw the mechanism of the reductive amination of 2-butanone in the presence of ammonia and hydrochloric acid.

Accepted Answer

The answer of ​Draw the mechanism of the reductive amination...

Question 2

Name the following substance.Atoms other than carbon and hydrogen are labeled.

Accepted Answer

N,N-dimeth

Question 3

Exhibit 24-3
Refer to the Table of pKS1U1B1aS1U1B0s below to answer the following question(s):
pKS1U1B1aS1U1B0s of Some Arylammonium Ions   
 
-Refer to Exhibit 24-3.Explain the difference in acidity between p-aminoanilinium ion and anilinium ion.Use both words and structures.

Accepted Answer

p-Aminoanilinium ion (pK_a = 6.15) is less

Question 4

Exhibit 24-2
Consider the reaction below to answer the following question(s).
Methamphetamine can be synthesized by reacting phenyl-2-propanone with methylamine in the presence of HS1U1B12S1U1B0/Ni.  
-Refer to Exhibit 24-2.Although the yield of methamphetamine is good,some unreacted phenyl-2-propanone remains after the reaction is complete.Describe how methamphetamine can be separated from phenyl-2-propanone.

Accepted Answer

Dissolve the reaction mixture containing

Question 5

Draw the structures for each of the intermediates in the boxes provided for the synthesis below.

Accepted Answer

The answer of Draw the structures for each of the...

Question 6

Name:

Accepted Answer

The answer of Name:  ...

Question 7

Name:

Accepted Answer

The answer of Name:  ...

Question 8

Describe the importance of the formation of arenediazonium salts.

Accepted Answer

Arenediazonium salts are stable and read

Question 9

Name:

Accepted Answer

The answer of Name:  ...

Question 10

NaOH,H2O
f.HNO3,H2SO4

Accepted Answer

step 1 = e

Question 11

Name:

Accepted Answer

m-chloro-N

Question 12

Classify the following amine.Atoms other than carbon and hydrogen are labeled.

Accepted Answer

A) primary 
B) secondary 
C) tertiary 
D) quaternary 
A) primary 
B) secondary 
C) tertiary 
D) quaternary

Question 13

Exhibit 24-4
Refer to the reaction below to answer the following question(s):  
-Refer to Exhibit 24-4.This reaction is an example of:

Accepted Answer

A) a Curtius rearrangement 
B) a Hofmann elimination reaction 
C) a Gabriel synthesis 
D) a Hofmann rearrangement 
A) a Curtius rearrangement 
B) a Hofmann elimination reaction 
C) a Gabriel synthesis 
D) a Hofmann rearrangement

Question 14

Exhibit 24-3
Refer to the Table of pKS1U1B1aS1U1B0s below to answer the following question(s):
pKS1U1B1aS1U1B0s of Some Arylammonium Ions   
 
-Refer to Exhibit 24-3.Based on the pKas for their corresponding ammonium ions,which arylamine above is the strongest base?

Accepted Answer

Question 15

At which pH will a solution of a 0.00050 M solution of aniline (pKa = 4.63) contain the greatest amount of the neutral species?

Accepted Answer

A) 2.74 
B) 4.63 
C) 7.31 
D) 9.90 
A) 2.74 
B) 4.63 
C) 7.31 
D) 9.90

Question 16

When a THF solution of phenyl-2-propanone and bromobutane is treated with 50% aqueous NaOH,poor yields of 3-phenyl-2-heptanone result.However,when a small amount of benzyltriethylammonium chloride is added to the reaction mixture,the yield of 3-phenyl-2-heptanone increases to 90%.Explain these results.

Accepted Answer

The reaction that is occurring is a carb

Question 17

Exhibit 24-8
Refer to the data below to answer the following question(s):
Triclocarban is a disinfectant prepared from 3,4-dichloroaniline and 4-chlorophenylisocyanate.  
-Refer to Exhibit 24-8.Prepare 3,4-dichloroaniline from benzene.

Accepted Answer

The answer of Exhibit 24-8
Refer to the data below to...

Question 18

The pKa of diethylammonium ion is 10.98.What is the pKb of diethylamine?

Accepted Answer

A) 3.02 
B) 14.00 
C) 24.98 
D) 7.00 
A) 3.02 
B) 14.00 
C) 24.98 
D) 7.00

Question 19

Exhibit 24-2
Consider the reaction below to answer the following question(s).
Methamphetamine can be synthesized by reacting phenyl-2-propanone with methylamine in the presence of HS1U1B12S1U1B0/Ni.  
-Refer to Exhibit 24-2.Identify the nucleophile in the initial reaction of phenyl-2-propanone to yield intermediate A.

Accepted Answer

The nucleo

Question 20

Exhibit 24-2
Consider the reaction below to answer the following question(s).
Methamphetamine can be synthesized by reacting phenyl-2-propanone with methylamine in the presence of HS1U1B12S1U1B0/Ni.  
-Refer to Exhibit 24-2.Intermediate A is an example of:

Accepted Answer

A) an imine 
B) an enamine 
C) an iminium ion 
D) an imide 
A) an imine 
B) an enamine 
C) an iminium ion 
D) an imide

Exam 24: Amines and Heterocycles

​Draw the mechanism of the reductive amination of 2-butanone in the presence of ammonia and hydrochloric acid.

Name the following substance.Atoms other than carbon and hydrogen are labeled.

Exhibit 24-3 Refer to the Table of pKas below to answer the following question(s): pKas of Some Arylammonium Ions -Refer to Exhibit 24-3.Explain the difference in acidity between p-aminoanilinium ion and anilinium ion.Use both words and structures.

Draw the structures for each of the intermediates in the boxes provided for the synthesis below.

Name:

Name:

Describe the importance of the formation of arenediazonium salts.

Name:

NaOH,H2O f.HNO3,H2SO4

Name:

Classify the following amine.Atoms other than carbon and hydrogen are labeled.

Exhibit 24-4 Refer to the reaction below to answer the following question(s): -Refer to Exhibit 24-4.This reaction is an example of:

Exhibit 24-3 Refer to the Table of pKas below to answer the following question(s): pKas of Some Arylammonium Ions -Refer to Exhibit 24-3.Based on the pKas for their corresponding ammonium ions,which arylamine above is the strongest base?

At which pH will a solution of a 0.00050 M solution of aniline (pKa = 4.63) contain the greatest amount of the neutral species?

Exhibit 24-8 Refer to the data below to answer the following question(s): Triclocarban is a disinfectant prepared from 3,4-dichloroaniline and 4-chlorophenylisocyanate. -Refer to Exhibit 24-8.Prepare 3,4-dichloroaniline from benzene.

The pKa of diethylammonium ion is 10.98.What is the pKb of diethylamine?

Exhibit 24-2 Consider the reaction below to answer the following question(s). Methamphetamine can be synthesized by reacting phenyl-2-propanone with methylamine in the presence of H2/Ni. -Refer to Exhibit 24-2.Intermediate A is an example of:

Structure and Bonding

Polar Covalent Bonds;acids and Bases

Organic Compounds: Alkanes and Their Stereochemistry

Organic Compounds: Cycloalkanes and Their Stereochemistry

Stereochemistry at Tetrahedral Centers

An Overview of Organic Reactions

Par 1

Alkenes: Structure and Reactivity

Alkenes: Reactions and Synthesis

Alkynes: an Introduction to Organic Synthesis

Organohalides

Reactions of Alkyl Halides: Nucleophilic Substitutions and Eliminations

Par 2

Structure Determination: Mass Spectrometry and Infrared Spectroscopy

Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Conjugated Compounds and Ultraviolet Spectroscopy

Par 3

Benzene and Aromaticity

Chemistry of Benzene: Electrophilic Aromatic Substitution

Alcohols and Phenols

Ethers and Epoxides;thiols and Sulfides

Aldehydes and Ketones: Nucleophilic Addition Reactions

Par 4

Carboxylic Acids and Nitriles

Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution Reactions

Carbonyl Condensation Reactions

Par 5

Biomolecules: Carbohydrates

Biomolecules: Amino Acids,peptides,and Proteins

Par 7

Biomolecules: Lipids

Biomolecules: Nucleic Acids

The Organic Chemistry of Metabolic Pathways

Orbitals and Organic Chemistry: Pericyclic Reactions

Synthetic Polymers

Par 1

Filters

Draw the mechanism of the reductive amination of 2-butanone in the presence of ammonia and hydrochloric acid.

Exhibit 24-3 Refer to the Table of pK_as below to answer the following question(s): pK_as of Some Arylammonium Ions -Refer to Exhibit 24-3.Explain the difference in acidity between p-aminoanilinium ion and anilinium ion.Use both words and structures.

NaOH,H₂O f.HNO₃,H₂SO₄

Exhibit 24-3 Refer to the Table of pK_as below to answer the following question(s): pK_as of Some Arylammonium Ions -Refer to Exhibit 24-3.Based on the pK_as for their corresponding ammonium ions,which arylamine above is the strongest base?

At which pH will a solution of a 0.00050 M solution of aniline (pK_a = 4.63) contain the greatest amount of the neutral species?

The pK_a of diethylammonium ion is 10.98.What is the pK_b of diethylamine?

Exhibit 24-2 Consider the reaction below to answer the following question(s). Methamphetamine can be synthesized by reacting phenyl-2-propanone with methylamine in the presence of H₂/Ni. -Refer to Exhibit 24-2.Intermediate A is an example of: