Question 1

The rate of formation of the oxime functional group from acetone and hydroxylamine in water is pH dependent. The ideal pH for this reaction is about 4.8.
  a. With reference to the reaction mechanism, using structures and 15 words or less, explain why this reaction is very slow at pH = 1.
b. With reference to the reaction mechanism, using structures and 15 words or less, explain why this reaction is very slow at pH = 8.

Accepted Answer

a. At pH 1, the electrophile is activate...

Question 2

Shown are two acetals. In the corresponding box, draw the structures of the carbonyl compound and alcohol component pieces for each acetal.
a. 
  ​
b.

Accepted Answer

In an acetal, the C-O bonds we...

Question 3

Bases can catalyze nucleophilic addition reactions of aldehydes and ketones by

Accepted Answer

A)   shifting the equilibrium of the reaction.
B)   converting water to hydroxide ion, a much better nucleophile.
C)   making the carbonyl group more electrophilic.
D)   making the carbonyl group less electrophilic.E) A) and C)
F) B) and C)

Question 4

Predict the major organic product of the reaction, for which the proton NMR spectrum is provided.

Accepted Answer

The starting material is a hemiacetal, s...

Question 5

-Methoxyglucose contains which functional group?
-Methoxyglucose contains which functional group?   A)  a hemiacetal B)  an acetal C)  an imine D)  an ester E)  more than one of these" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   a hemiacetal
B)   an acetal
C)   an imine
D)   an ester
E)   more than one of theseF) B) and E)
G) A) and E)

Exam 19: The Chemistry of Aldehydes and Ketones

Correct Answer
verified
a. At pH 1, the electrophile is activate...
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-Methoxyglucose contains which functional group?

Correct Answer
verified

Bases can catalyze nucleophilic addition reactions of aldehydes and ketones by

Correct Answer
verified

Shown are two acetals. In the corresponding box, draw the structures of the carbonyl compound and alcohol component pieces for each acetal. a. b.

Correct Answer
verified
In an acetal, the C-O bonds we...
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Predict the major organic product of the reaction, for which the proton NMR spectrum is provided.

Correct Answer
verified
The starting material is a hemiacetal, s...
View Answer

Exam 19: The Chemistry of Aldehydes and Ketones

Correct Answerverifieda. At pH 1, the electrophile is activate...View AnswerShow Answer

-Methoxyglucose contains which functional group?

Correct AnswerverifiedShow Answer

Bases can catalyze nucleophilic addition reactions of aldehydes and ketones by

Correct AnswerverifiedShow Answer

Shown are two acetals. In the corresponding box, draw the structures of the carbonyl compound and alcohol component pieces for each acetal. a. ​ b.

Correct AnswerverifiedIn an acetal, the C-O bonds we...View AnswerShow Answer

Predict the major organic product of the reaction, for which the proton NMR spectrum is provided.

Correct AnswerverifiedThe starting material is a hemiacetal, s...View AnswerShow Answer

Correct Answer
verified
a. At pH 1, the electrophile is activate...
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Correct Answer
verified

Correct Answer
verified

Shown are two acetals. In the corresponding box, draw the structures of the carbonyl compound and alcohol component pieces for each acetal. a. b.

Correct Answer
verified
In an acetal, the C-O bonds we...
View Answer

Correct Answer
verified
The starting material is a hemiacetal, s...
View Answer