Question 1

Propose a synthesis of propanoic acid from acetylene.

Accepted Answer

The answer of Propose a synthesis of propanoic acid from...

Question 2

Devise a synthetic route to prepare 1,3-dibromopropan-2-ol from propene.

Accepted Answer

The answer of Devise a synthetic route to prepare 1,3-dibromopropan-2-ol...

Question 3

Devise a synthetic route for the following equation.

Accepted Answer

The answer of Devise a synthetic route for the following...

Question 4

Reaction of compound A (molecular formula = C12H24)  with ozone followed by reaction with DMS produces only (CH3) 3CCH2CHO. Which of the following could be compound A?

Accepted Answer

A)   cis-2,3,7,8-tetramethyloct-4-ene
B)   trans-dodec-6-ene
C)   4,4-dimethylpent-1-ene
D)   cis-2,2,7,7-tetramethyloct-4-ene
E)   2,2-dimethyldec-4-ene

Question 5

Propose a three-step synthetic sequence to accomplish the transformation below.

Accepted Answer

1. tBuOK
2...

Question 6

Propose a synthetic route for the following equation.

Accepted Answer

1. Br₂, h...

Question 7

Propose a three-step synthetic sequence to accomplish the transformation below.

Accepted Answer

1. NaOEt
2...

Question 8

Provide the major product(s)  for the following synthesis.

Accepted Answer

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

Question 9

Predict the major product(s)  for the following reaction.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   I, III, and IV

Question 10

Propose a multi-step synthetic sequence to accomplish the transformation below.

Accepted Answer

1. Br₂, h...

Question 11

Select the best reagents for the reaction below. 2SO4 D)  NaOH E)  NaSH" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   NaOtBu
B)   HBr
C)   H2SO4
D)   NaOH
E)   NaSH

Question 12

Select the best reagents for the reaction below. 4; 2. NaHSO3, H2O B)  1. Hg(OAc) 2, H2O; 2. NaBH4 C)  H2, Pt D)  1. BH3∙THF; 2. H2O2, NaOH E)  1. O3; 2. DMS" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1. OsO4; 2. NaHSO3, H2O
B)   1. Hg(OAc) 2, H2O; 2. NaBH4
C)   H2, Pt
D)   1. BH3∙THF; 2. H2O2, NaOH
E)   1. O3; 2. DMS

Question 13

Propose a three-step synthetic sequence to accomplish the transformation below.

Accepted Answer

1. Br<sub>...

Question 14

Select the best reagents for the reaction below. 2SO4 D)  NaOH E)  NaSH" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   NaOtBu
B)   HBr
C)   H2SO4
D)   NaOH
E)   NaSH

Question 15

Predict the major product(s)  for the reaction of pent-1-en-4-yne with sodium amide followed by reaction with bromoethane.

Accepted Answer

A)   hept-1-en-4-yne
B)   hept-6-en-3-yne
C)   hept-3-en-6-yne
D)   hept-4-en-1-yne
E)   hept-2-en-4-yne

Question 16

Identify the best solvent for Green Chemistry.

Accepted Answer

A)   methylene chloride
B)   water
C)   ethanol
D)   methanol
E)   ethyl acetate

Question 17

Select the best reagents for the reaction below. 2SO4 C)  CH3CO2H D)  NaOEt E)  B and D" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   NaOH
B)   heat/H2SO4
C)   CH3CO2H
D)   NaOEt
E)   B and D

Question 18

Reaction of compound A (molecular formula = C7H12)  with sodium amide, followed by reaction with 1-bromobutane produces a compound with a structure of (CH3) 2CHCH(CH3) CC(CH2) 3CH3. What is the name of compound A?

Accepted Answer

A)   2,3-dimethylnon-4-yne
B)   2,2-dimethylpent-1-yne
C)   3,4-dimethylpent-1-yne
D)   4,4-dimethylhept-1-yne
E)   1-heptyne

Question 19

Which of the following sequences converts 3-methyl-1-pentene into 3-bromo-3-methylpentane?

Accepted Answer

A)   1. Br2; 2. NaOH; 3. HBr
B)   1. Br2, h υ\upsilonυ ; 2. H2, Pt
C)   1. H2, Pt; 2. Br2, h υ\upsilonυ 
D)   1. NBS, h υ\upsilonυ ; 2. H2, Pt
E)   1. HBr, ROOR; 2. NaOH; 3. HBr

Question 20

Most synthesis problems will have _________ (one, many) correct answers.

Accepted Answer

The answer of Most synthesis problems will have _________ (one,...

Exam 11: Synthesis

Identify the best solvent for Green Chemistry.

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Predict the major product(s) for the reaction of pent-1-en-4-yne with sodium amide followed by reaction with bromoethane.

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Reaction of compound A (molecular formula = C12H24) with ozone followed by reaction with DMS produces only (CH3) 3CCH2CHO. Which of the following could be compound A?

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Select the best reagents for the reaction below.

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Reaction of compound A (molecular formula = C7H12) with sodium amide, followed by reaction with 1-bromobutane produces a compound with a structure of (CH3) 2CHCH(CH3) CC(CH2) 3CH3. What is the name of compound A?

Correct AnswerverifiedShow Answer

Propose a three-step synthetic sequence to accomplish the transformation below.

Correct Answerverified1. tBuOK2...View AnswerShow Answer

Propose a three-step synthetic sequence to accomplish the transformation below.

Correct Answerverified1. NaOEt2...View AnswerShow Answer

Which of the following sequences converts 3-methyl-1-pentene into 3-bromo-3-methylpentane?

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Select the best reagents for the reaction below.

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Propose a multi-step synthetic sequence to accomplish the transformation below.

Correct Answerverified1. Br2, h...View AnswerShow Answer

Provide the major product(s) for the following synthesis.

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Propose a three-step synthetic sequence to accomplish the transformation below.

Correct Answerverified1. Br...View AnswerShow Answer

Devise a synthetic route for the following equation.

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Propose a synthesis of propanoic acid from acetylene.

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Devise a synthetic route to prepare 1,3-dibromopropan-2-ol from propene.

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Predict the major product(s) for the following reaction.

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Most synthesis problems will have _________ (one, many) correct answers.

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Select the best reagents for the reaction below.

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Select the best reagents for the reaction below.

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Propose a synthetic route for the following equation.

Correct Answerverified1. Br2, h...View AnswerShow Answer

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Reaction of compound A (molecular formula = C₁₂H₂₄) with ozone followed by reaction with DMS produces only (CH₃) ₃CCH₂CHO. Which of the following could be compound A?

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Reaction of compound A (molecular formula = C₇H₁₂) with sodium amide, followed by reaction with 1-bromobutane produces a compound with a structure of (CH₃) ₂CHCH(CH₃) CC(CH₂) ₃CH₃. What is the name of compound A?

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1. tBuOK
2...
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1. NaOEt
2...
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1. Br₂, h...
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1. Br_...
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1. Br₂, h...
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