
(a)
Interpretation: The products for the given reaction have to be identified.
Concept Introduction:
Ketals:
Ketals are used to protect the carbonyl group of the
In the following example, the carbonyl group of the acetone has been protected as ketal by using ethylene glycol.
Example:
In acidic condition, a ketone reacts with two molecules of alcohol or a molecule of
General scheme:
Hydrolysis of Ketal:
Hydrolysis of ketal gives back the corresponding alcohol and the corresponding ketone from which the ketal has been formed. The hydrolysis takes place only in acidic conditions. So, the hydrolysis of ketal is an acid-catalyzed hydrolysis reaction.
General scheme:
(b)
Interpretation: The products for the given reaction have to be found.
Concept Introduction:
Ketals:
Ketals are used to protect the carbonyl group of the ketone.
In the following example, the carbonyl group of the acetone has been protected as ketal by using ethylene glycol.
Example:
In acidic condition, a ketone reacts with two molecules of alcohol or a molecule of diol to form ketal or cyclic ketal respectively.
General scheme:
Hydrolysis of Ketal:
Hydrolysis of ketal gives back the corresponding alcohol and the corresponding ketone from which the ketal has been formed. The hydrolysis takes place only in acidic conditions. So, the hydrolysis of ketal is an acid-catalyzed hydrolysis reaction.
General scheme:

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Chapter 12 Solutions
Essential Organic Chemistry (3rd Edition)
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- Draw the major product of this SN1 reaction. Ignore any inorganic byproducts. CH3CO2Na CH3CO2H Drawing + Br Q Atoms, Bonds and Rings OAC Charges OH ОАс Na ဂ Br Undo Reset Remove Done Drag To Pan +arrow_forwardOrganic Functional Groups entifying positions labeled with Greek letters in acids and derivatives 1/5 ssible, replace an H atom on the a carbon of the molecule in the drawing area with a ce an H atom on the ẞ carbon with a hydroxyl group substituent. ne of the substituents can't be added for any reason, just don't add it. If neither substi er the drawing area. O H OH Oneither substituent can be added. Check D 1 Accessibility ado na witharrow_forwardDifferentiate between electrophilic and nucleophilic groups. Give examples.arrow_forward
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- Ggggffg2258555426855 please don't use AI Calculate the positions at which the probability of a particle in a one-dimensional box is maximum if the particle is in the fifth energy level and in the eighth energy level.arrow_forwardExplain the concepts of hemiacetal and acetal.arrow_forwardBriefly describe a nucleophilic addition.arrow_forward
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