Organic Chemistry, Loose-leaf Version
8th Edition
ISBN: 9781305865549
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 9.7, Problem 9.7P
Interpretation Introduction
Interpretation:
Reason for cis undergo a faster E2 reaction than trans isomer has to be given.
Concept Introduction:
The elimination reaction takes place from
In
In E2 elimination, the proton and leaving group must be in anti-periplanar geometry.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Two substitution products result from the
reaction between 3-chloro-3-methyl-1-
butene with sodium acetate (CH3COO – Na +)
in acetic acid under SN1.
Identify the products.
Account for the fact that the bicyclic ether (3) is formed from the trans isomer but not from the cis isomer.
The structure below is the cyclic ether (epoxide), butene oxide:
(1)
CH3CH₂
-CH₂
butene oxide
How could this compound be prepared from but-1-ene?
Explain why butene oxide is much more reactive than its isomer,
tetrahydrofuran, which is also a cyclic ether:
H₂C-CH₂
H₂C
CH₂
tetrahydrofuran
Illustrate how butene oxide reacts with ammonia, showing details of
the mechanism leading to the final product, C4H11 NO.
Chapter 9 Solutions
Organic Chemistry, Loose-leaf Version
Ch. 9.1 - Prob. 9.1PCh. 9.3 - Prob. 9.2PCh. 9.3 - Prob. 9.3PCh. 9.3 - Prob. 9.4PCh. 9.4 - Prob. 9.5PCh. 9.5 - Predict the -elimination product(s) formed when...Ch. 9.7 - Prob. 9.7PCh. 9.9 - Predict whether each reaction proceeds...Ch. 9.9 - Prob. AQCh. 9.9 - Prob. BQ
Ch. 9.9 - Prob. CQCh. 9.9 - Prob. DQCh. 9.10 - Prob. 9.9PCh. 9 - Prob. 9.10PCh. 9 - Prob. 9.11PCh. 9 - Prob. 9.12PCh. 9 - Prob. 9.13PCh. 9 - Prob. 9.14PCh. 9 - Prob. 9.15PCh. 9 - Treatment of 1-aminoadamantane, C10H17N, with...Ch. 9 - Prob. 9.17PCh. 9 - Prob. 9.18PCh. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Attempts to prepare optically active iodides by...Ch. 9 - Draw a structural formula for the product of each...Ch. 9 - Prob. 9.23PCh. 9 - Alkenyl halides such as vinyl bromide, CH2=CHBr,...Ch. 9 - Prob. 9.25PCh. 9 - Prob. 9.26PCh. 9 - Prob. 9.27PCh. 9 - Show how you might synthesize the following...Ch. 9 - Prob. 9.29PCh. 9 - 1-Chloro-2-butene undergoes hydrolysis in warm...Ch. 9 - Prob. 9.31PCh. 9 - Prob. 9.32PCh. 9 - Solvolysis of the following bicyclic compound in...Ch. 9 - Which compound in each set undergoes more rapid...Ch. 9 - Prob. 9.35PCh. 9 - Prob. 9.36PCh. 9 - Draw structural formulas for the alkene(s) formed...Ch. 9 - Prob. 9.38PCh. 9 - Following are diastereomers (A) and (B) of...Ch. 9 - Prob. 9.40PCh. 9 - Elimination of HBr from 2-bromonorbornane gives...Ch. 9 - Which isomer of 1-bromo-3-isopropylcyclohexane...Ch. 9 - Prob. 9.43PCh. 9 - Prob. 9.44PCh. 9 - Draw a structural formula for the major organic...Ch. 9 - When cis-4-chlorocyclohexanol is treated with...Ch. 9 - Prob. 9.47PCh. 9 - The Williamson ether synthesis involves treatment...Ch. 9 - The following ethers can, in principle, be...Ch. 9 - Prob. 9.50PCh. 9 - Prob. 9.51PCh. 9 - Prob. 9.52PCh. 9 - Prob. 9.53PCh. 9 - Prob. 9.54PCh. 9 - Write the products of the following sequences of...Ch. 9 - Using your reaction roadmap as a guide, show how...Ch. 9 - Using your reaction roadmap as a guide, show how...Ch. 9 - Using your reaction roadmap as a guide, show how...Ch. 9 - Prob. 9.59PCh. 9 - Another important pattern in organic synthesis is...Ch. 9 - Using your reaction roadmap as a guide, show how...Ch. 9 - Prob. 9.62PCh. 9 - Prob. 9.63PCh. 9 - Prob. 9.64P
Knowledge Booster
Similar questions
- Bicyclo-2,5-heptadiene can be prepared in two steps from cyclopentadiene and vinyl chloride. Provide a mechanism for each step.arrow_forwardAccount for the fact that addition of HCl to 1-bromopropene gives exclusively 1-bromo-1-chloropropane. CH₂CH=CHBr + HCl CH₂CH₂CHBrCl 1-Bromo-1-chloropropane 1-Bromopropene Account for the fact that treating propenoic acid (acrylic acid) with HCl gives only 3-chloropropanoic acid. CH₂=CHCOH + HCl Propenoic acid (Acrylic acid) Br L OH CICH₂CH₂COH 3-Chloropropanoic acid (b) Draw a structural formula for the alkene with the molecular formula C-H₁0 that reacts with Br, and water to give each product. 10 OH Br (c) HO | || CH₂CHCOH Br 2-Chloropropanoic acid L(this product is not formed)_arrow_forwardIdentify two alkenes that react with HBr to form 1-bromo-1-methylcyclohexane without undergoing a carbocation rearrangement.arrow_forward
- It is known that a 1,4 - cyclohexadiene compound undergoes an isomerization process to become 1,3 - cyclohexadiene in the presence of an acid. There are 2 possible mechanisms for the isomerization reaction, namely: If 3,3,6,6 - tetradeuterio - 1,4 - cyclohexadiene is reacted with an acid so that it undergoes an isomerization reaction to become 1,2,5,5 - tetradeuterio - 1,3 - cyclohexadiene. Which is the preferred mechanism path? Explain why! (Note: the C - H bond is weaker than the C - D bond)arrow_forwardAddition of HBr to 3,3-dimethyl-1-butene gives a mixture of two isomeric alkyl bromide products. Draw structures for the two products, and give a mechanistic explanation for their formation.arrow_forwardCompound A has molecular formula C4H10. Compound A gives two monochlorides, B and C, on photochemical chlorination. Treatment of either of these monochlorides with potassium tert-butoxide gives the same alkene (C4H8) as the product, but B leads to just one isomer of the alkene, D, whereas C gives D and another isomer of the alkene, E. Treatment of monochlorides B and C with aqueous ethanol gives products F and G, respectively, both of which are of molecular formula C4H100. What are the chemical names of compounds A-G?arrow_forward
- Name (including E/Z stereochemistry) the five alkenes that can produce 3-bromo-3-methylhexane on reaction with HBr. Draw the skeletal structure of each molecule.arrow_forwardWhen 3,3-dimethyl-1-butene is treated with HBr alone, the major product is 2-bromo-2,3-dimethylbutane. When the same alkene is treated with HBr and peroxide, the sole product is 1-bromo-3,3-dimethylbutane. Explain these results by referring to the mechanisms.arrow_forwardDraw an approximate reaction-energy diagram showing the curves for the two possible pathways for ionic addition of HBr to 1-methylcyclohexene. (a) Formation of the major product, 1-bromo-1-methylcyclohexane, and (b) formation of the minor product, 1-bromo-2-methylcyclohexane. Point out how these curves show that 1-bromo-1-methylcyclohexane should be formed fasterarrow_forward
- Ethers can be prepared by reaction of an alkoxide or phenoxide ion with a primary alkyl halide. Draw the structure of the expected organic product of the reaction of iodomethane with the following alkoxide ion: CH3 H3C O Na You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Do not include counter-ions, e.g., Na", I, in your answer. орy вste ChemDoodlearrow_forwardAn alkene having the molecular formula C5H10 is treated sequentially with ozone (O3) and zinc/acetic acid to give the product/s shown. H3C O CH3CHCH + H. Draw a structural formula for the alkene. You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw one. P opy aste [* Previous Nextarrow_forward1-Chloro-4-isopropylcyclohexane exists as two stereoisomers: one cis and one trans. Treatment of either isomer with sodium ethoxide in ethanol gives 4-isopropylcyclohexene by an E2 reaction. CH,CH,O Na* CI CH,CH,OH 1-Chloro-4- 4-Isopropylcyclohexene isopropylcyclohexane The cis isomer undergoes E2 reaction several orders of magnitude faster than the trans isomer. How do you account for this experimental observation?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