Textbook Question
Of the compounds you named in Problem 45:
b. Which is the least stable?
a.
b.
c.
d.
e.
f.
2
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Ch. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and Kinetics
Bruice8th EditionOrganic ChemistryISBN: 9780135213711
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Table of contents
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding (Part 1)31
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding (Part 2)65
- Ch. 2 - Acids and Bases: Central to Understanding Organic Chemistry84
- Ch. 3 - An Introduction to Organic Compounds:Nomenclature, Physical Properties, and Structure183
- Ch. 4 - Isomers: The Arrangement of Atoms in Space121
- Ch. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and Kinetics83
- Ch. 6 - The Reactions of Alkenes • The Stereochemistry of Addition Reactions175
- Ch. 7 - The Reactions of Alkynes • An Introduction to Multistep Synthesis119
- Ch. 8 - Delocalized Electrons: Their Effect on Stability, pKa, and the Products of a Reaction • Aromaticity and Electronic Effects: An Introduction to the Reactions of Benzene148
- Ch. 9 - Substitution and Elimination Reactions of Alkyl Halides212
- Ch. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing Compounds131
- Ch. 11 - Organometallic Compounds60
- Ch. 12 - Radicals90
- Ch. 13 - Mass Spectrometry; Infrared Spectroscopy; UV/Vis Spectroscopy62
- Ch. 14 - NMR Spectroscopy95
- Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives123
- Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives141
- Ch. 17 - Reactions at the Alpha-Carbon101
- Ch. 18 - Reactions of Benzene and Substituted Benzenes144
- Ch. 19 - More About Amines • Reactions of Heterocyclic Compounds49
- Ch. 20 - The Organic Chemistry of Carbohydrates80
- Ch. 21 - Amino Acids, Peptides, and Proteins57
- Ch. 22 - Catalysis in Organic Reactions and in Enzymatic Reactions35
- Ch. 23 - The Organic Chemistry of the Coenzymes—Compounds Derived from Vitamins1
- Ch. 28 - Pericyclic Reactions58
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Bruice 8th EditionCh. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and KineticsProblem 49
Bruice 8th EditionCh. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and KineticsProblem 49Chapter 6, Problem 49
Draw the skeletal structure of 3,3-dimethyl-7-(1-methylethyl)-6-(1-methylpropyl)decane.
Verified step by step guidance1
Identify the parent chain: The parent chain is 'decane,' which means it is a straight chain of 10 carbon atoms. Number the chain from one end to the other to assign substituents the lowest possible numbers.
Locate the substituents: The name indicates three substituents: (1) 3,3-dimethyl, (2) 7-(1-methylethyl), and (3) 6-(1-methylpropyl). These substituents will be attached to the parent chain at carbons 3, 7, and 6, respectively.
Draw the substituents: (1) At carbon 3, draw two methyl groups (-CH₃) attached to the same carbon. (2) At carbon 7, draw an isopropyl group (-CH(CH₃)₂), which corresponds to the '1-methylethyl' group. (3) At carbon 6, draw a sec-butyl group (-CH(CH₃)CH₂CH₃), which corresponds to the '1-methylpropyl' group.
Assemble the structure: Start with the 10-carbon parent chain and attach the substituents at their respective positions. Ensure that the substituents are drawn in their correct structural forms and that all carbons have four bonds.
Verify the structure: Double-check that the substituents are placed at the correct positions (3, 6, and 7), that the parent chain remains intact, and that all carbons and hydrogens are accounted for in the skeletal structure.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Skeletal Structures
Skeletal structures are simplified representations of organic molecules that depict the arrangement of carbon atoms and their bonds. In these diagrams, carbon atoms are represented by vertices or ends of lines, while hydrogen atoms are often omitted for clarity. Understanding how to read and draw skeletal structures is essential for visualizing complex organic compounds.
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How bondline is different from Lewis Structures.
IUPAC Nomenclature
IUPAC nomenclature is a systematic method for naming organic chemical compounds based on their structure. It provides rules for identifying the longest carbon chain, substituents, and their positions. Familiarity with IUPAC naming conventions is crucial for interpreting and constructing the names of organic molecules, such as 3,3-dimethyl-7-(1-methylethyl)-6-(1-methylpropyl)decane.
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03:43The different parts of an IUPAC name
Substituents and Branching
Substituents are groups of atoms that replace hydrogen atoms in a hydrocarbon chain, affecting the molecule's properties and reactivity. In the context of the given compound, understanding how to identify and represent branched substituents, like isopropyl and isobutyl groups, is vital for accurately drawing the skeletal structure and recognizing the overall molecular architecture.
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03:07How to identify and locate branches (substituents)
Related Practice
Textbook Question
a. Which is the most stable: 3,4-dimethyl-2-hexene, 2,3-dimethyl-2-hexene, or 4,5-dimethyl-2-hexene?
b. Which compound has the largest heat of hydrogenation?
c. Which compound has the smallest heat of hydrogenation?
1
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Textbook Question
Of the compounds you named in Problem 45:
a. Which is the most stable?
a.
b.
c.
d.
e.
f.
1
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Textbook Question
Which bond is stronger? Briefly explain why.
a.
3
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Textbook Question
In a reaction in which reactant A is in equilibrium with product B at 25 °C, what relative amounts of A and B are present at equilibrium if ∆G° at 25 °C is
a. 2.72 kcal/mol?
b. 0.65 kcal/mol?
1
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Textbook Question
In a reaction in which reactant A is in equilibrium with product B at 25 °C, what relative amounts of A and B are present at equilibrium if ∆G° at 25 °C is
c. -2.72 kcal/mol?
d. -0.65 kcal/mol?
10
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