Domanda del libro di testo
What alkyl halide will be obtained in greatest yield? Ignore stereoisomers.
a.
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Ch. 12 - Radicals
Bruice8th EditionOrganic ChemistryISBN: 9780135213711
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TOC.tableOfContents
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding31
- 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
Capitolo 12, Problema 39c
What alkyl halide will be obtained in greatest yield? Ignore stereoisomers.
c. 
Guida verificata passo dopo passo1
Step 1: Recognize the reaction type. The presence of peroxide indicates that this is a free radical addition of HBr to an alkene, following the anti-Markovnikov rule. This means the bromine atom will add to the less substituted carbon of the double bond.
Step 2: Identify the structure of the alkene. The given alkene is 2-methyl-2-butene, which has a double bond between the second and third carbons.
Step 3: Determine the less substituted carbon in the double bond. In 2-methyl-2-butene, the less substituted carbon is the third carbon, as the second carbon is bonded to three other carbons.
Step 4: Predict the product. The bromine atom will add to the third carbon, and the hydrogen atom will add to the second carbon, resulting in the formation of 3-bromo-2-methylbutane.
Step 5: Confirm the major product. Since the reaction follows the anti-Markovnikov rule and stereoisomers are ignored, the major product will be 3-bromo-2-methylbutane.
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Anti-Markovnikov Addition
Anti-Markovnikov addition refers to the addition of HX (where X is a halogen) to alkenes in a manner that results in the halogen attaching to the less substituted carbon atom. This is typically facilitated by the presence of peroxides, which promote a radical mechanism, leading to the formation of the less stable radical intermediate and ultimately favoring the less substituted product.
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Anti-Markovnikov addition of alcohols to terminal alkynes yields aldehydes
Radical Mechanism
A radical mechanism involves the formation and reaction of free radicals, which are highly reactive species with unpaired electrons. In the context of alkene reactions with HBr in the presence of peroxides, the radical mechanism allows for the anti-Markovnikov addition by generating bromine radicals that add to the alkene, leading to the formation of the product with the bromine on the less substituted carbon.
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Alkyl Halides
Alkyl halides are organic compounds derived from alkanes that contain one or more halogen atoms (F, Cl, Br, I) replacing hydrogen atoms. The structure and substitution pattern of the alkyl halide influence its reactivity and stability, which is crucial when determining the yield of products in reactions involving alkenes and halogen acids, especially under radical conditions.
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01:52How to name alkyl halides
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