Question 1

Give the major organic product for the reaction.

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 2

Provide the major organic product in the reaction below.

Accepted Answer

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

Question 3

Give the IUPAC name for the following compound.

Accepted Answer

A) isoprene 
B) 3-methyl-1,3-butadiene 
C) 2-methyl-1,3-butadiene 
D) 2-methyl-2,3-butadiene 
E) isobutadiene

Question 4

Which of the following is the final and major product of this reaction?

Accepted Answer

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

Question 5

An optically active compound (A), C₆H₁₀, reacts with H₂/Ni to produce compound (B), C₆H₁₄. (B)is optically inactive. Deduce the structures of (A)and (B).

Accepted Answer

The answer of An optically active compound (A), C₆H₁₀, reacts...

Question 6

Name the following compound:

Accepted Answer

The answer of Name the following compound: ...

Question 7

Provide the structure of the intermediate which forms in the first step of the reaction of 1-butyne with water in the presence of H₂SO₄/HgSO₄.

Accepted Answer

The answer of Provide the structure of the intermediate which...

Question 8

Write structures and give IUPAC names for all alkynes with molecular formula C₅H₈.

Accepted Answer

The answer of Write structures and give IUPAC names for...

Question 9

Describe a sequence of reactions by which CH₃CH₂CH₂COCH₂CH₃ can be prepared from 1-butyne.

Accepted Answer

The answer of Describe a sequence of reactions by which...

Question 10

Give the IUPAC name for BrCH₂CH₂CCCH₂CH₃.

Accepted Answer

The answer of Give the IUPAC name for BrCH₂CH₂CCCH₂CH₃....

Question 11

Give the best reagents for the reaction.

Accepted Answer

A) H2, Pd 
B) 1) LiAlH4, 2. H3O+ 
C) 1) NaBH4, 2. H3O+ 
D) H2, Lindlar catalyst 
E) Na, NH3

Question 12

Give the systematic name for the alkyne Cl₃CCH₂CH₂CCCH₃.

Accepted Answer

The answer of Give the systematic name for the alkyne...

Question 13

Provide the structure of the major organic product of the following reaction.

Accepted Answer

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

Question 14

Give the reagents for the following reaction.

Accepted Answer

The answer of Give the reagents for the following reaction....

Question 15

Describe a sequence of reactions by which 3-heptyne can be straightforwardly prepared from acetylene.

Accepted Answer

The answer of Describe a sequence of reactions by which...

Question 16

Give the best reagents for the reaction.

Accepted Answer

A) H2SO4, HgSO4, HgSO4 
B) 1) disiamylborane, 2. HO-, H2O, H2O2 
C) K2Cr2O7, H+ 
D) NaOCl 
E) H2, Pd

Question 17

Provide the sequence of reagents that are needed to accomplish the multistep synthesis below.

Accepted Answer

The answer of Provide the sequence of reagents that are...

Question 18

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

Accepted Answer

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

Question 19

Although you might expect 1-propyne to be more reactive than 1-propene in electrophilic addition reactions, the reverse is true. Explain this using your knowledge of the mechanism of electrophilic additions to both alkynes and alkenes.

Accepted Answer

The answer of Although you might expect 1-propyne to be...

Question 20

What type of organic product results when 1-butyne is treated with 6M aqueous NaOH?

Accepted Answer

A) a sodium acetylide 
B) an enol 
C) an alcohol 
D) an aldehyde 
E) Not much reaction; most of the alkyne remains unchanged.

Exam 7: Reactions of Alkynes Introduction to Multistep Synthesis

Give the major organic product for the reaction.

Provide the major organic product in the reaction below.

Give the IUPAC name for the following compound.

Which of the following is the final and major product of this reaction?

An optically active compound (A), C6H10, reacts with H2/Ni to produce compound (B), C6H14. (B)is optically inactive. Deduce the structures of (A)and (B).

Name the following compound:

Provide the structure of the intermediate which forms in the first step of the reaction of 1-butyne with water in the presence of H2SO4/HgSO4.

Write structures and give IUPAC names for all alkynes with molecular formula C5H8.

Describe a sequence of reactions by which CH3CH2CH2COCH2CH3 can be prepared from 1-butyne.

Give the IUPAC name for BrCH2CH2CCCH2CH3.

Give the best reagents for the reaction.

Give the systematic name for the alkyne Cl3CCH2CH2CCCH3.

Provide the structure of the major organic product of the following reaction.

Give the reagents for the following reaction.

Describe a sequence of reactions by which 3-heptyne can be straightforwardly prepared from acetylene.

Give the best reagents for the reaction.

Provide the sequence of reagents that are needed to accomplish the multistep synthesis below.

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

Although you might expect 1-propyne to be more reactive than 1-propene in electrophilic addition reactions, the reverse is true. Explain this using your knowledge of the mechanism of electrophilic additions to both alkynes and alkenes.

What type of organic product results when 1-butyne is treated with 6M aqueous NaOH?

An optically active compound (A), C₆H₁₀, reacts with H₂/Ni to produce compound (B), C₆H₁₄. (B)is optically inactive. Deduce the structures of (A)and (B).

Provide the structure of the intermediate which forms in the first step of the reaction of 1-butyne with water in the presence of H₂SO₄/HgSO₄.

Write structures and give IUPAC names for all alkynes with molecular formula C₅H₈.

Describe a sequence of reactions by which CH₃CH₂CH₂COCH₂CH₃ can be prepared from 1-butyne.

Give the IUPAC name for BrCH₂CH₂CCCH₂CH₃.

Give the systematic name for the alkyne Cl₃CCH₂CH₂CCCH₃.