Concept explainers
(a)
Interpretation:
The way by which the given
Concept introduction:
Aldol reaction is an addition reaction of
(b)
Interpretation:
The way by which the given
Concept introduction:
Aldol reaction is an addition reaction of aldehydes and ketones. Aldol reaction is a reversible reaction and occurs in the presence of a strong base like sodium hydroxide. One molecule (aldehyde or ketone) acts a nucleophile and attacks the electrophilic carbon center of the other molecule to give the addition product. The product is named
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Student Study Guide and Solutions Manual for Brown/Iverson/Anslyn/Foote's Organic Chemistry, 8th Edition
- 2-Pentylcinnamaldehyde, commonly called flosal, is a perfume ingredient with a jasmine-like odor. Flosal is an α,β-unsaturated aldehyde made by a crossed aldol reaction between benzaldehyde (C6H5CHO) and heptanal (CH3CH2CH2CH2CH2CH2CHO), followed by dehydration. Draw a stepwise mechanism for the following reaction that prepares flosal.arrow_forwardDraw the product formed when phenylacetic acid (C6H5CH2COOH) istreated with following reagent. With some reagents, no reaction occurs. NaOHarrow_forward2-Pentylcinnamaldehyde, commonly called flosal, is a perfume ingredient with a jasminelike odor. Flosal is an α,β-unsaturated aldehyde made by a crossed aldol reaction between benzaldehyde (C6H5CHO) and heptanal (CH3CH2CH2CH2CH2CH2CHO), followed by dehydration. Draw a stepwise mechanism for the following reaction that prepares flosal.arrow_forward
- Provide the necessary reagents for the following transformation. Ph Me Ph Etarrow_forwardDraw reaction of an Α,β -unsaturated carboxylic acid derivative with a nucleophile forms a nucleophilic acyl substitution product with a reactive carbonyl group and a conjugate addition product with a less reactive carbonyl grouparrow_forwardPropose a mechanism for the following reaction.arrow_forward
- Show how you would synthesize octanal from each compound. You may use any necessary reagents.ethyl octanoatearrow_forwardEsters with only one α hydrogen generally give poor yields in the Claisen condensation. Q: Propose a mechanism for the Claisen condensation of ethyl isobutyrate.arrow_forwardβ-D-Glucose, a hemiacetal, can be converted to a mixture of acetals on treatment with CH3OH in the presence of acid. Draw a stepwise mechanism for this reaction. Explain why two acetals are formed from a single starting material.arrow_forward
- 4) The following enone, 3-methylcyclopent-2-enone, was prepared through an intramolecular aldol condensation followed by a dehydration. Draw the starting diketone and the intermediate cyclic ß-hydroxy ketone. 3-methylcyclopent-2-enonearrow_forwardPlease come up with five ways to synthesize α,β-Unsaturated carbonyl compounds. Draw reaction sequences for each one.arrow_forwardβ-D-Glucose, a hemiacetal, can be converted to a mixture of acetals on treatment with CH3OH in the presence of acid. Draw a stepwise mechanism for this reaction. Explain why two acetals are formed from a single starting material.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning