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Exam 21: Organic Synthesis 2: Intermediate Topics in Synthesis Design,and Useful Reduction and Oxidation Reactions

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Exam 1: Atomic and Molecular Structure54 Questionsadd course
Exam 2: Interchapter: Nomenclature 1-477 Questionsadd course
Exam 3: Interchapter 1molecular Orbital Theory and Chemical Reactions17 Questionsadd course
Exam 4: Three-Dimensional Geometry,intermolecular Interactions,and Physical Properties53 Questionsadd course
Exam 5: Orbital Interactions 1: Hybridization and Two-Center Molecular Orbitals56 Questionsadd course
Exam 6: Isomerism 1: Conformational and Constitutional Isomers60 Questionsadd course
Exam 7: Isomerism 2: Chirality,enantiomers,and Diastereomers63 Questionsadd course
Exam 8: The Proton Transfer Reaction: an Introduction to Mechanisms,thermodynamics,and Charge Stability51 Questionsadd course
Exam 9: An Overview of the Most Common Elementary Steps58 Questionsadd course
Exam 10: An Introduction to Multistep Mechanisms: Sn1 and E1 Reactions59 Questionsadd course
Exam 11: Nucleophilic Substitution and Elimination Reactions 1: Competition Among Sn2,sn1,e2,and E1 Reactions50 Questionsadd course
Exam 12: Nucleophilic Substitution and Elimination Reactions 2: Reactions That Are Useful for Synthesis58 Questionsadd course
Exam 13: Electrophilic Addition to Nonpolar Π Bonds 1: Addition of a Brønsted Acid50 Questionsadd course
Exam 14: Electrophilic Addition to Nonpolar Π Bonds 2: Reactions Involving Cyclic Transition States55 Questionsadd course
Exam 15: Organic Synthesis 1: Beginning Concepts50 Questionsadd course
Exam 16: Orbital Interactions 2: Extended Π Systems,conjugation,and Aromaticity54 Questionsadd course
Exam 17: Structure Determination 1: Ultravioletvisible and Infrared Spectroscopies50 Questionsadd course
Exam 18: Structure Determination 2: Nuclear Magnetic Resonance Spectroscopy and Mass Spectrometry60 Questionsadd course
Exam 19: Nucleophilic Addition to Polar Π Bonds 1: Addition of Strong Nucleophiles50 Questionsadd course
Exam 20: Nucleophilic Addition to Polar Π Bonds 2: Addition of Weak Nucleophiles and Acid and Base Catalysis63 Questionsadd course
Exam 21: Organic Synthesis 2: Intermediate Topics in Synthesis Design,and Useful Reduction and Oxidation Reactions50 Questionsadd course
Exam 22: Nucleophilic Additionelimination Reactions 1: the General Mechanism Involving Strong Nucleophiles55 Questionsadd course
Exam 23: Nucleophilic Additionelimination Reactions 2: Weak Nucleophiles54 Questionsadd course
Exam 24: Electrophilic Aromatic Substitution 1: Substitution on Benzene; Useful Accompanying Reactions50 Questionsadd course
Exam 25: Electrophilic Aromatic Substitution 2: Substitution on Mono- and Disubstituted Benzene and Other Aromatic Rings50 Questionsadd course
Exam 26: The Dielsalder Reaction and Other Pericyclic Reactions53 Questionsadd course
Exam 27: Reactions Involving Free Radicals50 Questionsadd course
Exam 28: Polymers51 Questionsadd course
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Predict the major product of the following reaction (assume one equivalent of H2 is present). Predict the major product of the following reaction (assume one equivalent of H<sub>2</sub> is present).

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(Multiple Choice)
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Question 1
Correct Answer:
Verified

E

Propose a synthesis of the following molecule using benzaldehyde as your only source of carbon.Additional inorganic reagents may be utilized. Propose a synthesis of the following molecule using benzaldehyde as your only source of carbon.Additional inorganic reagents may be utilized.

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(Short Answer)
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Question 2
Correct Answer:
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Propose a synthetic route to carry out the transformation shown below. Propose a synthetic route to carry out the transformation shown below.

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(Short Answer)
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Question 3
Correct Answer:
Verified

Fill in the reagent needed to carry out the following reaction. Fill in the reagent needed to carry out the following reaction.

(Short Answer)
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Question 4

Fill in the boxes with a starting material and reagents to complete the synthetic scheme below. Fill in the boxes with a starting material and reagents to complete the synthetic scheme below.

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Question 5

Propose a synthesis of the product at the right using the given starting material and any other reagents necessary. Propose a synthesis of the product at the right using the given starting material and any other reagents necessary.

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Question 6

What is the missing starting material for the synthesis shown below? What is the missing starting material for the synthesis shown below?

(Multiple Choice)
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Question 7

What is the product of the following reaction? What is the product of the following reaction?

(Multiple Choice)
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Question 8

Show how you would synthesize the molecule below using propionaldehyde as the only source of carbon present in the final product. Show how you would synthesize the molecule below using propionaldehyde as the only source of carbon present in the final product.

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Question 9

What is the product of the following reaction sequence? What is the product of the following reaction sequence?

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Question 10

Predict the major product of the following reaction (assume one equivalent of H2 is present). Predict the major product of the following reaction (assume one equivalent of H<sub>2</sub> is present).

(Multiple Choice)
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Question 11

A student proposes the following reaction.Explain the issue that this student may encounter,and suggest an alternative route to achieve the same synthetic transformation. A student proposes the following reaction.Explain the issue that this student may encounter,and suggest an alternative route to achieve the same synthetic transformation.

(Essay)
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Question 12

Propose a synthesis of the following molecule using butyraldehyde as your only source of carbon. Propose a synthesis of the following molecule using butyraldehyde as your only source of carbon.

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Question 13

Give an example of an umpolung reaction,and indicate the carbon atom at which polarity reversal is occurring.

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Question 14

Propose a way to carry out the following transformation beginning with the starting material shown and using any other reagents necessary. Propose a way to carry out the following transformation beginning with the starting material shown and using any other reagents necessary.

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Question 15

Using the molecule shown at the left as your only source of carbon,propose a synthesis of the product shown at the right. Using the molecule shown at the left as your only source of carbon,propose a synthesis of the product shown at the right.

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Question 16

A student attempted the following synthetic step but did not obtain the desired major product.Explain why the reaction was unsuccessful,and suggest a better synthetic route. A student attempted the following synthetic step but did not obtain the desired major product.Explain why the reaction was unsuccessful,and suggest a better synthetic route.

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Question 17

Determine the product of the following reaction sequence. Determine the product of the following reaction sequence.

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Question 18

What is the expected product of the reaction below? What is the expected product of the reaction below?

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Question 19

In which of the following reactions does a reversal of polarity at a carbon atom take place?

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Question 20
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