Organic Chemistry
4th Edition
ISBN: 9780073402772
Author: Janice G. Smith
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Question
Chapter 15, Problem 15.46P
Interpretation Introduction
Interpretation:
To prepare 5-bromo-1-methylcyclopentene in good yield by allylic bromination of 1-methylcyclopentene and explain whether it is possible or not.
Concept introduction:
Allylic C-H bonds are weaker than other sp3 hybridized C-H bonds, the allylic carbon can be selectively halogenated by using N-bromosuccinimide or NBS reagent in the presence peroxide to form the allylic halide. N-bromosuccinimide contains a weak N-Br bond that is homolytically cleaved with light to generate a bromine radical, initiating an allylic halogenation reaction.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Para-substituted product was produced when phenol reacts with
cyclohexanecarbonyl bromide in the presence of AIB13.
-Br
Cyclohexanecarbonyl bromide
(i)
Outline the mechanism for this reaction.
(ii)
Draw the alternative substituted product formed.
Alkylation of benzene with 1-chlorobutane in the presence of AlCl3 gave not only the expected butylbenzene product but also, as a major product, (1-methylpropyl)benzene.
Write an equation for the reaction
Propose a mechanism to account for the formation of butylbenzene
Propose a mechanism to account for the formation of (1-methylpropyl)benzene
Because bromocyclohexane is a secondary alkyl halide, both cyclohexanol and cyclohexene are formed when the alkyl halide reacts with hydroxide ion. Suggest a method to synthesize cyclohexanol from bromocyclohexane that forms little or no cyclohexene.
Chapter 15 Solutions
Organic Chemistry
Ch. 15 - Prob. 15.1PCh. 15 - Prob. 15.2PCh. 15 - Draw the product formed when a chlorine atom (Cl)...Ch. 15 - Prob. 15.4PCh. 15 - Prob. 15.5PCh. 15 - Problem 15.6 Using mechanism 15.1 as guide, write...Ch. 15 - Calculate m0 for the two propagation steps in the...Ch. 15 - Prob. 15.8PCh. 15 - Problem 15.8 Which bond in the each compound is...Ch. 15 - Prob. 15.10P
Ch. 15 - Prob. 15.11PCh. 15 - Synthesize each compound from (CH3)3CH. a....Ch. 15 - Prob. 15.13PCh. 15 - Prob. 15.14PCh. 15 - Prob. 15.15PCh. 15 - Prob. 15.16PCh. 15 - Prob. 15.17PCh. 15 - Prob. 15.18PCh. 15 - Draw all constitutional isomers formed when each...Ch. 15 - Draw the structure of the four allylic halides...Ch. 15 - Which compounds can be prepared in good yield by...Ch. 15 - Which CH bond is most readily cleaved in linolenic...Ch. 15 - Prob. 15.23PCh. 15 - Draw the products formed when each alkene is...Ch. 15 - Problem 15.24 When adds to under radical...Ch. 15 - Prob. 15.26PCh. 15 - Draw an energy diagram for the two propagation...Ch. 15 - Prob. 15.28PCh. 15 - Problem 15.27 Draw the steps of the mechanism that...Ch. 15 - Prob. 15.30PCh. 15 - Prob. 15.31PCh. 15 - Prob. 15.32PCh. 15 - Prob. 15.33PCh. 15 - Why is a benzylic CH bond labeled in red unusually...Ch. 15 - Prob. 15.35PCh. 15 - Prob. 15.36PCh. 15 - Prob. 15.37PCh. 15 - Prob. 15.38PCh. 15 - What alkane is needed to make each alkyl halide by...Ch. 15 - Which alkyl halides can be prepared in good yield...Ch. 15 - Prob. 15.41PCh. 15 - 15.40 Explain why radical bromination of p-xylene...Ch. 15 - a. What product(s) (excluding stereoisomers) are...Ch. 15 - Prob. 15.44PCh. 15 - Prob. 15.45PCh. 15 - Prob. 15.46PCh. 15 - 15.44 Draw all constitutional isomers formed when...Ch. 15 - Draw the organic products formed in each reaction....Ch. 15 - Prob. 15.49PCh. 15 - 15.47 Treatment of a hydrocarbon A (molecular...Ch. 15 - Prob. 15.51PCh. 15 - Prob. 15.52PCh. 15 - Prob. 15.53PCh. 15 - Prob. 15.54PCh. 15 - 15.53 Consider the following bromination: .
a....Ch. 15 - 15.54 Draw a stepwise mechanism for the following...Ch. 15 - Prob. 15.57PCh. 15 - An alternative mechanism for the propagation steps...Ch. 15 - Prob. 15.59PCh. 15 - Prob. 15.60PCh. 15 - Devise a synthesis of each compound from...Ch. 15 - Devise a synthesis of each target compound from...Ch. 15 - Devisea synthesis of each target compound from the...Ch. 15 - Devise a synthesis of each compound using CH3CH3...Ch. 15 - Prob. 15.65PCh. 15 - 15.63 As described in Section 9.16, the...Ch. 15 - 15.64 Ethers are oxidized with to form...Ch. 15 - Prob. 15.68PCh. 15 - Prob. 15.69PCh. 15 - 15.67 In cells, vitamin C exists largely as its...Ch. 15 - What monomer is needed to form each...Ch. 15 - Prob. 15.72PCh. 15 - Prob. 15.73PCh. 15 - 15.71 Draw a stepwise mechanism for the following...Ch. 15 - 15.72 As we will learn in Chapter 30, styrene...Ch. 15 - Prob. 15.76PCh. 15 - 15.74 A and B, isomers of molecular formula , are...Ch. 15 - Prob. 15.78PCh. 15 - Radical chlorination of CH3CH3 forms two minor...Ch. 15 - 15.76 Draw a stepwise mechanism for the...Ch. 15 - Prob. 15.81PCh. 15 - Prob. 15.82PCh. 15 - Prob. 15.83P
Knowledge Booster
Similar questions
- what is the structure of the substitution product in the following reaction and consider stereochemistry in deciding your product?arrow_forwardIf phenoxide ion is allowed to react with 1-bromopentane, pentyl phenyl ether is obtained. However, if cyclohexane is used as the alkyl halide, the major products are phenol and cyclohexene. Explain how these products were formed.arrow_forwardTwo products are possible when pent-2-ene is treated with HBr. Write the structures of the possible products, and explain why they are made in about equal amounts.arrow_forward
- How many alkenes yield 2,3−dimethylbutane on catalytic hydrogenation?arrow_forwardAccount for the regioselectivity and stereoselectivity observed when 1-methylcyclopentene is treated with reagent. Q) Br2 in H2Oarrow_forwardWhen 3-bromo-1-methylcyclohexene undergoes solvolysis in hot ethanol, two productsare formed. Propose a mechanism that accounts for both of these productsarrow_forward
- On treatment with HBr, 3-Methyl-1-pentene undergoes addition and rearrangement to yield 3-Bromo-3-methylpentenearrow_forwardWhen cyclohexene is treated with m-chloroperbenzoic acid and H,0, trans-cyclohexane-1,2-diol is produced. Propose a mechanism for this reaction, accounting for the observed stereochemistry. Hint: Recall what a МСРВА + Enantiomer H2O "OH peroxyacid does to an alkene.arrow_forwardWhat starting alkene reacted with I2 in a solution of CH2Cl2 is required to produce 1,2-diiodoocyclopentane?arrow_forward
- Compound A on ozonolysis yields the two products shown. What is the structure of compound A? Compound A 1.03 2. (CH3)2S ||| ol H H || IV H Harrow_forwardWhen cyclohexene is reacted with hydrobromic acid in acetic acid, the major product is bromocyclohexane. There is a small amount of cyclohexyl acetate formed. What is the mechanism that forms both compounds? What is the purification procedure that isolates both compounds?arrow_forwardThe bicyclic alkene P can be prepared by thermal electrocyclic ring closure from cyclodecadiene Q or by photochemical electrocyclic ring closure from cyclodecadiene R. Draw the structures of Q and R, and indicate the stereochemistry of the process by which each reaction occurs.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning