Organic Chemistry
Improve your experience by picking them
Indicate which bonds are broken and which bonds are formed during the following reaction. Also, show whether each of the bonds that are broken or formed is a σ bond or a π bond.
Explain why acetals are used as a carbonyl-protecting group against nucleophilic reagents.
Draw a suitable mechanism for the given reaction.
Which of the following ketones forms the most hydrate?
Identify the given compound as one of the following:
Draw the product of the reaction given below.
Draw a mechanism for the reaction of acetaldehyde with methanol in the presence of an acid.
Draw a mechanism for the hydrolysis of acetone dimethyl acetal in the presence of an acid.
Draw a mechanism for the reaction of acetone with ethylene glycol in the presence of an acid.
Draw the structure of the acetal given below.a. the ethylene acetal of butan-2-one
Show how the following acetals can be produced using suitable carbonyl compounds and alcohols.
Draw a mechanism for the hydrolysis of cyclopentanone ethylene acetal in the presence of an acid.
Draw a mechanism for the hydrolysis of the acetal given below in the presence of an acid.
Name the functional group present in the following compounds and show the products of their complete hydrolysis.
The heterocyclic rings of nucleosides have aminoacetal linkage with deoxyribose. Box the aminoacetal functional groups in adenosine and thymidine.
Draw the structure of the product formed when benzaldehyde reacts with ethylene glycol in an acidic medium.
Draw the product of the reaction shown below:
Draw the structure of cyclopentanone diethyl acetal.
Draw the structure of the product formed when 1-cyclopentylpropan-1-one reacts with excess ethanol and acid.
Provide the structure of the product formed when 2-cyclopentylacetaldehyde reacts with methanol and acid.
(i) What is the functional group present in the following compound?
(ii) What are the products of its complete hydrolysis?
Acetals are formed by the reaction of an alcohol with a ketone. The following reaction shows the hydrolysis of an acetal. What is the mechanism for this reaction?
(i) Determine the functional group present in the compound shown below.
(ii) Determine the product of its complete hydrolysis.
Simple aminoacetals are hydrolyzed by dilute acids. What is the mechanism for the aminoacetal hydrolysis shown below?
Dioxepane has three isomers: 1,2-dioxepane, 1,3-dioxepane, and 1,4-dioxepane. Identify which dioxepane could act as an ordinary ether and is excellent for Grignard reactions, which could be potentially explosive when heated, and which could quickly hydrolyze in diluted acid.
Dioxepane has three isomers: 1,2-dioxepane, 1,3-dioxepane, and 1,4-dioxepane. One isomer would quickly hydrolyze in dilute acid. Propose a mechanism for the acid hydrolysis of the isomer.