Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 11, Problem 13PP
Interpretation Introduction
Interpretation:
Reaction mechanism for the reactions (a) and (b) are to be written. Explanation of no
Concept introduction:
If a proton is removed from the hydroxyl group, the result obtained is an alkoxide ion.
The alkoxide ion reacts further with itself in an intramolecular manner via a
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Practice Problem 13.36b
Problem 13.34 outlines a general method for the preparation of cis- or trans-disubstituted epoxides. Using that method, identify what reagents you would use to prepare the
following epoxide from acetylene:
H"
'Et
The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters
(without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer.
A
B
C
D
DMP or PCC
На, Pt
EtBr
PHCH2BR
E
F
H
H2SO4, H20, HgSO4
МСРВА (RCO3зН)
Na, NH3 (/)
H2, Lindlar's cat.
I
K
TSCI, py
PhBr
NANH2
1) EtMgBr; 2) H30+
Nucleophilic aromatic substitution provides one of the common methods for making phenols. ) Show how you would synthesize the following phenols, using benzene or toluene as your aromatic starting material, and explain why mixtures of products would be obtained in some cases.
(a) m-cresol (b) p-n-butylphenol
Draw a structural formula for the alcohol formed by treating each alkene with borane
in tetrahydrofuran (THF) followed by hydrogen peroxide in aqueous sodium hydroxide,
and specify stereochemistry where appropriate.
(a)
(d)
(b)
(e)
(c)
Chapter 11 Solutions
Organic Chemistry
Ch. 11 - Prob. 1PPCh. 11 - Practice Problem 11.2 Give bond-line formulas and...Ch. 11 - Prob. 3PPCh. 11 - Prob. 4PPCh. 11 - Prob. 5PPCh. 11 - Prob. 6PPCh. 11 - Prob. 7PPCh. 11 - Practice Problem 11.8 Show how you would prepare...Ch. 11 - Prob. 9PPCh. 11 - Prob. 10PP
Ch. 11 - Practice Problem 11.11
An exception to what is...Ch. 11 - Prob. 12PPCh. 11 - Prob. 13PPCh. 11 - Prob. 14PPCh. 11 - Prob. 15PPCh. 11 - Prob. 16PPCh. 11 - Prob. 17PPCh. 11 - Prob. 18PPCh. 11 - Practice Problem 11.19
Propose structures for each...Ch. 11 - Prob. 20PPCh. 11 - Prob. 21PPCh. 11 - Prob. 22PPCh. 11 - Prob. 23PPCh. 11 - Prob. 24PPCh. 11 - Give an IUPAC substitutive name for each of the...Ch. 11 - Prob. 26PCh. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - 11.30. Show how you might prepare 2-bromobutane...Ch. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Considering A-L to represent the major products...Ch. 11 - Write structures for the products that would be...Ch. 11 - Prob. 36PCh. 11 - Provide the reagents necessary for the following...Ch. 11 - 11.38. Predict the major product from each of the...Ch. 11 - Predict the products from each of the following...Ch. 11 - Provide the reagents necessary to accomplish the...Ch. 11 - 11.41. Provide reagents that would accomplish the...Ch. 11 - Prob. 42PCh. 11 - 11.43. A synthesis of the -receptor blocker called...Ch. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - 11.46. For each of the following, write a...Ch. 11 - 11.47. Vicinal halo alcohols (halohydrins) can be...Ch. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 50PCh. 11 - Prob. 51PCh. 11 - Prob. 52PCh. 11 - Outlined below is a synthesis of the gypsy moth...Ch. 11 - Prob. 54PCh. 11 - Prob. 55PCh. 11 - Prob. 56PCh. 11 - 11.57. When the 3-bromo-2-butanol with the...Ch. 11 - 11.58. Reaction of an alcohol with thionyl...Ch. 11 - Prob. 59PCh. 11 - Prob. 60PCh. 11 - Prob. 1LGPCh. 11 - Prob. 2LGPCh. 11 - Synthesize the compound shown below from...
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- PRACTICE PROBLEM 8.20 Specify the alkene and reagents needed to synthesize each of the following diols. OH HO- (a) (b) (c) HO. н он HO (racemic) (racemic)arrow_forwardShow how you might synthesize the following compounds, using acetylene and anysuitable alkyl halides as your starting materials. If the compound given cannot besynthesized by this method, explain why.(a) hex-1-yne (b) hex-2-ynearrow_forwardShow how the following ethers might be synthesized using (1) alkoxymercuration–demercuration and (2) the Williamson synthesis. (When one of these methods cannot beused for the given ether, point out why it will not work.)(a) 2-methoxybutane (b) ethyl cyclohexyl etherarrow_forward
- Propose an efficient synthesis of (a) and (b) of the following transformationsarrow_forward(a) (b) (c) Suggest a synthesis of the following alkene (A) using a Wittig reaction strategy. Draw the starting material(s), key reagent and a full reaction mechanism including an explanation of the observed geometry. Which of the following (B) and (C) will favour the enol form? Briefly explain your reasoning. Predict the product(s) and provide a mechanism for each of the following transformations: (i) (ii) OMe OMe Base OEt NaOEtarrow_forward. How would you carry out each of the following syntheses: ? (a) (b)arrow_forward
- 8. (a) Benzene derivatives exhibit medium to strong absorption in UV-region. Explain why aniline and phenoxide ion have strong UV-absorptions.arrow_forward(b) A student wanted to synthesize methyl tert-butyl ether. He attempted the synthesis by adding sodium methoxide to tert-butyl chloride, but he obtained none of the desired product (1) (ii) Use an equation to show the product formed in this reaction Propose a suitable William ether synthetic route for methyl tert-butyl ether tach l.arrow_forwardPredict the major products of the following reactions, including stereochemistry where appropriate. (a) potassium tert-butoxide + methyl iodide (b) sodium methoxide + tert-butyl iodidearrow_forward
- Explain the following observations :(i) The boiling point of ethanol is higher than that of methoxymethane.(ii) Phenol is more acidic than ethanol.(iii) o- and p-nitrophenols are more acidic than phenol.arrow_forward8.23 In each of the following indicate which reaction will occur faster. Explain your reasoning. (D) Solvolysis of 1-bromo-2,2-dimethylpropane or tert-butyl bromide in ethanol (E) Solvolysis of isobutyl bromide or sec-butyl bromide in aqueous formic acid (F) Reaction of 1-chlorobutane with sodium acetate in acetic acid or with sodium methoxide in methanolarrow_forward8.30 Outline an efficient synthesis of each of the following compounds from the indicated start- ing material and any necessary organic or inorganic reagents: (a) Cyclopentyl cyanide from cyclopentane (b) Cyclopentyl cyanide from cyclopentene (c) Cyclopentyl cyanide from cyclopentanol (d) NCCH₂CH₂CN from ethyl alcohol (e) Isobutyl iodide from isobutyl chloride (f) Isobutyl iodide from tert-butyl chloride (g) Isopropyl azide from isopropyl alcohol (h) Isopropyl azide from 1-propanol (i) (S)-sec-Butyl azide from (R)-sec-butyl alcohol (i) (S)-CH3CH₂CHCH3 from (R)-sec-butyl alcohol SHarrow_forward
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