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Aldol Reactions and Claisen Condensation

Interactive Video
•

Jackson Turner
•
Chemistry, Biology
•
10th Grade - University
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Glucose
Fats
Proteins
Vitamins
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which two chemists independently discovered the aldol reaction?
Charles Adolphe Wurtz and Alexander Borodin
Marie Curie and Louis Pasteur
Dmitri Mendeleev and Robert Bunsen
Linus Pauling and Rosalind Franklin
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a base-catalyzed aldol reaction, what is the initial step involving the base?
Dehydration of the aldol product
Formation of an enolate ion
Protonation of the carbonyl group
Formation of a double bond
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of elimination mechanism is involved in the dehydration step of a base-catalyzed aldol reaction?
E1
E2
E1cb
SN2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an acid-catalyzed aldol reaction, what happens to the carbonyl oxygen initially?
It is eliminated
It is deprotonated
It is protonated
It forms a double bond
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the penicillin synthesis example in the context of aldol reactions?
To show the formation of glucose
To demonstrate the use of aldol reactions in pharmaceuticals
To explain the history of aldol reactions
To illustrate the use of acid catalysis
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main product of a Claisen condensation reaction?
Beta-hydroxycarbonyl compound
Beta-keto ester
Gamma-lactone
Alpha-hydroxy acid
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which base is typically used in a Claisen condensation to avoid unwanted reactions?
Sodium hydroxide
Sodium ethoxide
Potassium carbonate
Lithium aluminum hydride
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a cross Claisen condensation, why is it important to choose one molecule without alpha hydrogens?
To ensure complete conversion
To increase the reaction rate
To prevent the formation of multiple products
To enhance the stability of the product
10.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of sodium tert-butoxide in the cross Claisen condensation example?
It deprotonates the alpha carbon
It forms a double bond
It acts as a nucleophile
It serves as a leaving group
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