Textbook Question
Show how you would synthesize octan-2-one from each compound. You may use any necessary reagents.
(e) heptanoic acid
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Ch. 18 - Ketones and Aldehydes
Wade9th EditionOrganic ChemistryISBN: 9780135213728
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Table of contents
- Ch.1 - Structure and Bonding107
- Ch. 2 - Acids and Bases; Functional Groups115
- Ch.3 - Structure and Stereochemistry of Alkanes100
- Ch.4 - The Study of Chemical Reactions99
- Ch.5 - Stereochemistry93
- Ch.6 - Alkyl Halides; Nucleophilic Substitution118
- Ch. 7 - Structure and Synthesis of Alkenes; Elimination158
- Ch.8 - Reactions of Alkenes171
- Ch.9 - Alkynes91
- Ch.10 - Structure and Synthesis of Alcohols143
- Ch.11 - Reactions of Alcohols104
- Ch. 12 - Infrared Spectroscopy and Mass Spectrometry22
- Ch. 13 - Nuclear Magnetic Resonance Spectroscopy45
- Ch. 14 - Ethers, Epoxides, and Thioethers72
- Ch. 15 - Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy89
- Ch. 16 - Aromatic Compounds74
- Ch. 17 - Reactions of Aromatic Compounds126
- Ch. 18 - Ketones and Aldehydes193
- Ch. 19 - Amines129
- Ch. 20 - Carboxylic Acids77
- Ch. 21 - Carboxylic Acid Derivatives141
- Ch. 22 - Condensations and Alpha Substitutions of Carbonyl Compounds175
- Ch. 23 - Carbohydrates and Nucleic Acids93
- Ch. 24 - Amino Acids, Peptides, and Proteins54
Chapter 18, Problem 56b
Show how you would synthesize octanal from each compound. You may use any necessary reagents.
(b) non-1-ene
Verified step by step guidance1
Identify the target molecule (octanal) and its functional group. Octanal is an aldehyde with the formula CH3(CH2)6CHO, containing a carbonyl group at the terminal carbon.
Analyze the starting material, non-1-ene (CH2=CH(CH2)6CH3). It is an alkene with a double bond at the terminal position. The goal is to convert the alkene into an aldehyde.
Plan the reaction sequence. The first step is to oxidize the terminal alkene to form an aldehyde. Use hydroboration-oxidation, which selectively converts terminal alkenes to aldehydes. The reagents are: (1) BH3·THF (borane in tetrahydrofuran) for hydroboration, and (2) H2O2, NaOH for oxidation.
Perform the hydroboration step. The boron atom adds to the less substituted carbon of the double bond (anti-Markovnikov addition), forming an organoborane intermediate.
Carry out the oxidation step. Treat the organoborane intermediate with hydrogen peroxide (H2O2) and sodium hydroxide (NaOH) to replace the boron atom with a hydroxyl group, forming octanal as the final product.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Alkene Reactions
Alkenes, such as non-1-ene, can undergo various reactions including hydroboration-oxidation and ozonolysis. These reactions allow for the transformation of alkenes into alcohols or aldehydes, which are crucial for synthesizing compounds like octanal. Understanding the mechanisms and conditions of these reactions is essential for effective synthesis.
Recommended video:
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Alkene Metathesis Concept 1
Oxidation and Reduction
Oxidation and reduction reactions are fundamental in organic synthesis. In the context of synthesizing octanal, converting an alcohol to an aldehyde involves oxidation, while reducing a carboxylic acid to an aldehyde involves reduction. Familiarity with common oxidizing and reducing agents is necessary to navigate these transformations.
Recommended video:
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00:54Distinguishing between Oxidation and Reduction
Functional Group Interconversion
Functional group interconversion refers to the process of transforming one functional group into another, which is vital in organic synthesis. For example, converting an alkene to an aldehyde requires specific reagents and conditions to achieve the desired functional group. Mastery of these conversions is key to synthesizing octanal from non-1-ene.
Recommended video:
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02:36Identifying Functional Groups
Related Practice
Textbook Question
Show how you would synthesize octan-2-one from each compound. You may use any necessary reagents.
(f) CH3(CH2)5CN
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Textbook Question
Show how you would synthesize octanal from each compound. You may use any necessary reagents.
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Textbook Question
Show how you would synthesize octanal from each compound. You may use any necessary reagents.
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Textbook Question
Show how you would synthesize octanal from each compound. You may use any necessary reagents.
(d) 1-bromoheptane
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Textbook Question
Show how you would synthesize octanal from each compound. You may use any necessary reagents.
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