Question 1 (3 points) Question 1 options: Write the structure of the major organ

Question

Question 1 (3 points)

Question 1 options:

Write the structure of the major organic product for the reaction of 1-bromopropane in the following reactions. The possible products are shown below: [answer by letter, no parenthesis]

In order to determine the major product, you need to know the dominant mechanism under the given conditions. Ask yourself the following:

1. What type of alkyl halide is reacting, e.g., 1o, 2o, 3o?

2. Is the nucleophile a strong or weak base?

     a. Recall that in general, the better the base, the better the nucleophile

3. What kind of mechanism predominates under the given conditions, e.g., SN1/E1, SN2, or E2

     a. Note that a strongly basic, unhindered nuc (like CHO-) favors SN2 while a strongly basic, hindered nuc (like (CH3)3CO-) favors E2.

4. What is the major product of the reaction? [answer by letter, no parenthesis]

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Question 2 (2 points)

Question 2 options:

Write the structure of the major organic product for the reaction of 1-bromopropane in the following reactions. The possible products are shown below:   [answer by letter, no parenthesis]

In order to determine the major product, you need to know the dominant mechanism under the given conditions. Ask yourself the following:

1. What type of alkyl halide is reacting, e.g., 1o, 2o, 3o?   

2. Is the nucleophile a strong or weak base?

     a. Recall that in general, the better the base, the better the nucleophile

3. What kind of mechanism predominates under the given conditions, e.g., SN1/E1, SN2, or E2

     a. Note that a strongly basic, unhindered nuc (like CHO-) favors SN2 while a strongly basic, hindered nuc (like (CH3)3CO-) favors E2.

4. What is the major product of the reaction? [answer by letter, no parenthesis]

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Question 3 (2 points)

Question 3 options:

Write the structure of the major organic product for the reaction of 1-bromopropane in the following reactions. The possible products are shown below:   [answer by letter, no parenthesis]

In order to determine the major product, you need to know the dominant mechanism under the given conditions. Ask yourself the following:

1. What type of alkyl halide is reacting, e.g., 1o, 2o, 3o?   

2. Is the nucleophile a strong or weak base?

     a. Recall that in general, the better the base, the better the nucleophile

3. What kind of mechanism predominates under the given conditions, e.g., SN1/E1, SN2, or E2   

     a. Note that a strongly basic, unhindered nuc (like CHO-) favors SN2 while a strongly basic, hindered nuc (like (CH3)3CO-) favors E2.

4. What is the major product of the reaction? [answer by letter, no parenthesis]

a)

b)

Explanation / Answer

Q-1

1 primery 1º

2 stronf

3 SN2/E2

3 Note that a strongly basic, unhindered nuc (like CHO-) favors SN2 while a strongly basic, hindered nuc (like (CH3)3CO-) favors E2 is correct

4

a SN2

b SN2

c E2

Q-2

1 1º

2 strong nucleophile

3 Note that a strongly basic, unhindered nuc (like CHO-) favors SN2 while a strongly basic, hindered nuc (like (CH3)3CO-) favors E2 is correct

4

a SN2

b E2

Q-3

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