Textbook Question
Using the given starting material, any necessary inorganic reagents and catalysts, and any carbon-containing compounds with no more than three carbons, indicate how each of the following compounds can be prepared:
e.
881
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Ch. 11 - Organometallic Compounds
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
Chapter 12, Problem 32c,d
What alkyl halide reacts with lithium divinylcuprate [(CH2=CH)2CuLi] for the synthesis of each of the following compounds?
c. 
d. 
Verified step by step guidance1
Step 1: Analyze the target compounds (c and d) provided in the image. Compound c is a linear alkene with two vinyl groups added to a straight-chain alkyl group. Compound d is a branched alkene with two vinyl groups added to a branched alkyl group.
Step 2: Understand the role of lithium divinylcuprate (3(CH2=CH)2CuLi4). This reagent is used for conjugate addition of vinyl groups to alkyl halides. The reaction involves the replacement of a halide group with vinyl groups.
Step 3: For compound c, identify the alkyl halide precursor. The target structure suggests that the starting alkyl halide should be a straight-chain alkyl halide with a halogen atom (e.g., bromine or iodine) at the position where the vinyl groups are added.
Step 4: For compound d, identify the alkyl halide precursor. The target structure suggests that the starting alkyl halide should be a branched alkyl halide with a halogen atom at the position where the vinyl groups are added.
Step 5: Write the general reaction mechanism. The lithium divinylcuprate reagent reacts with the alkyl halide via nucleophilic substitution, replacing the halogen atom with two vinyl groups. Ensure the correct stereochemistry and connectivity in the final product.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Alkyl Halides
Alkyl halides are organic compounds containing a carbon atom bonded to a halogen atom (F, Cl, Br, I). They are important in organic synthesis due to their reactivity, particularly in nucleophilic substitution and elimination reactions. Understanding the structure and reactivity of alkyl halides is crucial for predicting the products of reactions involving these compounds.
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How to name alkyl halides
Lithium Divinylcuprate
Lithium divinylcuprate (Li2CuC4H4) is a reagent used in organic synthesis, particularly for the conjugate addition to α,β-unsaturated carbonyl compounds. It acts as a nucleophile, allowing for the formation of new carbon-carbon bonds. Recognizing how this reagent interacts with alkyl halides is essential for determining the appropriate starting materials for synthesizing target compounds.
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Nucleophilic Substitution Reactions
Nucleophilic substitution reactions involve the replacement of a leaving group (such as a halide) by a nucleophile. These reactions can follow either an SN1 or SN2 mechanism, depending on the structure of the alkyl halide and the conditions of the reaction. Understanding these mechanisms is vital for predicting the outcome of reactions involving alkyl halides and reagents like lithium divinylcuprate.
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Related Practice
Textbook Question
What vinylic halide couples with styrene (C6H5-CH=CH2) in order to synthesize each of the following compounds using a Heck reaction?
c.
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Textbook Question
Using ethynylcyclohexane as a starting material and any other needed reagents, how can the following compounds be synthesized?
a.
3606
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Textbook Question
What are the products of the following reactions?
a.
b.
71
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Textbook Question
Using the given starting material, any necessary inorganic reagents and catalysts, and any carbon-containing compounds with no more than three carbons, indicate how each of the following compounds can be prepared:
f.
671
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Textbook Question
What alkyl halide reacts with lithium divinylcuprate [(CH2=CH)2CuLi] for the synthesis of each of the following compounds?
a.
b.
877
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