(a)
Interpretation:
The structural formulas of the product formed from hydrolysis of given acetal in an acid solution has drawn.
Concept Introduction:
Aldehydes and ketones react with alcohol to form hemiacetal as the product. This reacts with further molecule of aldehyde or ketone to form acetal.
Acetals are stable in basic solution. But in acidic solution, they undergo hydrolysis. Hydrolysis is a
Acetal is formed when the formed hemiacetal reacts with further alcohol molecule so that the hydroxyl group in the hemiacetal is converted into alkoxy group. This can be shown as given below,
Acetal undergoes hydrolysis in acidic solution to form two alcohol molecules and ketone or aldehyde molecule. The general reaction for hydrolysis of acetal in acid solution,
(b)
Interpretation:
The structural formulas of the product formed from hydrolysis of given acetal in an acid solution has drawn.
Concept Introduction:
Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom. Ketones are compounds that contain a carbonyl group bonded to two carbon atoms. Aldehydes and ketones undergo addition reaction across the carbonyl group.
Aldehydes and ketones react with alcohol to form hemiacetal as the product. This reacts with further molecule of aldehyde or ketone to form acetal.
Acetals are stable in basic solution. But in acidic solution, they undergo hydrolysis. Hydrolysis is a chemical reaction in which the compound splits into two or more fragments when water is added to the compound in presence of acid or base as catalyst. Acetals undergo hydrolysis to give the respective starting materials from which it is formed.
Acetal is formed when the formed hemiacetal reacts with further alcohol molecule so that the hydroxyl group in the hemiacetal is converted into alkoxy group. This can be shown as given below,
Acetal undergoes hydrolysis in acidic solution to form two alcohol molecules and ketone or aldehyde molecule. The general reaction for hydrolysis of acetal in acid solution,
(c)
Interpretation:
The structural formulas of the product formed from hydrolysis of given acetal in an acid solution has drawn.
Concept Introduction:
Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom. Ketones are compounds that contain a carbonyl group bonded to two carbon atoms. Aldehydes and ketones undergo addition reaction across the carbonyl group.
Aldehydes and ketones react with alcohol to form hemiacetal as the product. This reacts with further molecule of aldehyde or ketone to form acetal.
Acetals are stable in basic solution. But in acidic solution, they undergo hydrolysis. Hydrolysis is a chemical reaction in which the compound splits into two or more fragments when water is added to the compound in presence of acid or base as catalyst. Acetals undergo hydrolysis to give the respective starting materials from which it is formed.
Acetal is formed when the formed hemiacetal reacts with further alcohol molecule so that the hydroxyl group in the hemiacetal is converted into alkoxy group. This can be shown as given below,
Acetal undergoes hydrolysis in acidic solution to form two alcohol molecules and ketone or aldehyde molecule. The general reaction for hydrolysis of acetal in acid solution,
(d)
Interpretation:
The structural formulas of the product formed from hydrolysis of given acetal in an acid solution has drawn.
Concept Introduction:
Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom. Ketones are compounds that contain a carbonyl group bonded to two carbon atoms. Aldehydes and ketones undergo addition reaction across the carbonyl group.
Aldehydes and ketones react with alcohol to form hemiacetal as the product. This reacts with further molecule of aldehyde or ketone to form acetal.
Acetals are stable in basic solution. But in acidic solution, they undergo hydrolysis. Hydrolysis is a chemical reaction in which the compound splits into two or more fragments when water is added to the compound in presence of acid or base as catalyst. Acetals undergo hydrolysis to give the respective starting materials from which it is formed.
Acetal is formed when the formed hemiacetal reacts with further alcohol molecule so that the hydroxyl group in the hemiacetal is converted into alkoxy group. This can be shown as given below,
Acetal undergoes hydrolysis in acidic solution to form two alcohol molecules and ketone or aldehyde molecule. The general reaction for hydrolysis of acetal in acid solution,
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Chapter 4 Solutions
EBK ORGANIC AND BIOLOGICAL CHEMISTRY
- Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction LiNO3arrow_forwardAn unknown weak acid with a concentration of 0.410 M has a pH of 5.600. What is the Ka of the weak acid?arrow_forward(racemic) 19.84 Using your reaction roadmaps as a guide, show how to convert 2-oxepanone and ethanol into 1-cyclopentenecarbaldehyde. You must use 2-oxepanone as the source of all carbon atoms in the target molecule. Show all reagents and all molecules synthesized along the way. & + EtOH H 2-Oxepanone 1-Cyclopentenecarbaldehydearrow_forward
- R₂ R₁ R₁ a R Rg Nu R₂ Rg R₁ R R₁₂ R3 R R Nu enolate forming R₁ R B-Alkylated carbonyl species or amines Cyclic B-Ketoester R₁₁ HOB R R₁B R R₁₂ B-Hydroxy carbonyl R diester R2 R3 R₁ RB OR R₂ 0 aB-Unsaturated carbonyl NaOR Aldol HOR reaction 1) LDA 2) R-X 3) H₂O/H₂O ketone, aldehyde 1) 2°-amine 2) acid chloride 3) H₂O'/H₂O 0 O R₁ R₁ R R₁ R₁₂ Alkylated a-carbon R₁ H.C R₁ H.C Alkylated methyl ketone acetoacetic ester B-Ketoester ester R₁ HO R₂ R B-Dicarbonyl HO Alkylated carboxylic acid malonic ester Write the reagents required to bring about each reaction next to the arrows shown. Next, record any regiochemistry or stereochemistry considerations relevant to the reaction. You should also record any key aspects of the mechanism, such as forma- tion of an important intermediate, as a helpful reminder. You may want to keep track of all reactions that make carbon-carbon bonds, because these help you build large molecules from smaller fragments. This especially applies to the reactions in…arrow_forwardProvide the reasonable steps to achieve the following synthesis.arrow_forwardIdentify which compound is more acidic. Justify your choice.arrow_forward
- Provide the reasonable steps to achieve the following synthesis.arrow_forwardWhen anisole is treated with excess bromine, the reaction gives a product which shows two singlets in 1H NMR. Draw the product.arrow_forward(ii) Draw a reasonable mechanism for the following reaction: CI NaOH heat OH (hint: SNAr Reaction) :arrow_forward
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