Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 7, Problem 24PP
Interpretation Introduction
Interpretation:
The conversion of 2-nonyne to
Concept introduction:
The reduction of
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O PRACTICE PROBLEM 8.14
Starting with any needed alkene (or cycloalkene) and assuming you have deuterioace-
tic acid (CH3CO,D) available, outline syntheses of the following deuterium-labeled
compounds.s el en
olad lo nohibbs ad
CH3
(a) (CH3)2CHCH2CH,D
(b) (CH3),CHCHDCH3 (c)
(+ enantiomer)
(d) Assuming you also have available BD3:THF and CH3CO2T, can you suggest a
synthesis of the following?
hab erl
(+ enantiomer)he
imo
(nwond-ben)
CH3
H.
(asoholea)
• PRACTICE PROBLEM 8.24 A, B, and C are alkynes. Elucidate their structures and that of D using the following
reaction roadmap.
H2, Pt
H,, Pt
A
(C3H14)
(C3H14)
IR: 3300 cm
(1) O3
(2) HOẠC
HO,
H2, Pt
(C3H12)
(C3H16)
(1) O3
(2) HOAC
hol bian vd beeollot
Но.
ОН
AOH
• PRACTICE PROBLEM 8.12
Treating a hindered alkene such as 2-methyl-2-butene with BH3:THE leads to the for-
mation of a dialkylborane instead of a trialkylborane. When 2 mol of 2-methyl-2-butene
is added to 1 mol of BH3, the product formed is bis(3-methyl-2-butyl)borane, nicknamed
in
reagent
"disiamylborane." Write its structure. Bis(3-methyl-2-butyl)borane is a useful
certain syntheses that require a sterically hindered borane. (The name “disiamyl" comes
from "disecondary-iso-amyl," a completely unsystematic and unacceptable name. The
name "amyl" is an old common name for a five-carbon alkyl group.) donby
Chapter 7 Solutions
Organic Chemistry
Ch. 7 - Prob. 1PPCh. 7 - Prob. 2PPCh. 7 - Prob. 3PPCh. 7 - Prob. 4PPCh. 7 - Practice Problem 7.5
How many stereoisomers are...Ch. 7 - Prob. 6PPCh. 7 - Prob. 7PPCh. 7 - PRACTICE PROBLEM 7.8
Examine Solved Problem 7.3....Ch. 7 - Prob. 9PPCh. 7 - Practice Problem 7.10 When...
Ch. 7 - Practice Problem 7.11
(a) When...Ch. 7 - Prob. 12PPCh. 7 - Prob. 13PPCh. 7 - Practice Problem 7.14
Dehydration of 2-propanol...Ch. 7 - Practice Problem 7.15
Rank the following alcohols...Ch. 7 - Practice Problem 7.16
Acid-catalyzed dehydration...Ch. 7 - Practice Problem 7.17 Acid-catalyzed dehydration...Ch. 7 - Prob. 18PPCh. 7 - Prob. 19PPCh. 7 - Practice Problem 7.20
Show how you might...Ch. 7 - Prob. 21PPCh. 7 - Prob. 22PPCh. 7 - Practice Problem 7.23
Write the structure of...Ch. 7 - Prob. 24PPCh. 7 - Prob. 25PPCh. 7 - Practice Problem 7.26 (a) Devise retrosynthetic...Ch. 7 - Each of the following names is incorrect, Give the...Ch. 7 - Prob. 28PCh. 7 - Prob. 29PCh. 7 - Give the IUPAC names for each of the following:...Ch. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - 7.35. Write structural formulas for all the...Ch. 7 - 7.36. Explain the following observations: When...Ch. 7 - Prob. 37PCh. 7 - Arrange the following alcohols in order of their...Ch. 7 - Prob. 39PPCh. 7 - Prob. 40PPCh. 7 - Prob. 41PPCh. 7 - Prob. 42PPCh. 7 - Your task is to prepare isopropyl methyl ether by...Ch. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - 7.47. Starting with an appropriate alkyl halide...Ch. 7 - Prob. 48PCh. 7 - 7.49. What is the index of hydrogen deficiency...Ch. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Compounds I and J both have the molecular formula...Ch. 7 - Prob. 53PCh. 7 - 7.54. Outline a synthesis of phenylethyne from...Ch. 7 - Prob. 55PPCh. 7 - Prob. 56PPCh. 7 - Prob. 57PPCh. 7 - cis-4-Bromocyclohexanol tBuOHtBuO racemic C6H10O...Ch. 7 - Prob. 59PPCh. 7 - Consider the interconversion of cis-2-butene and...Ch. 7 - Prob. 61PCh. 7 - (a) Using reactions studied in this chapter, show...Ch. 7 - Prob. 63PCh. 7 - Prob. 64PCh. 7 - 1. Write the structure(s) of the major product(s)...Ch. 7 - Prob. 2LGPCh. 7 - (a) Write the structure of the product(s) formed...Ch. 7 - Prob. 4LGP
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- Please don't provide handwriting solutionarrow_forward7.44 Give the structures of two different alkyl bromides both of which yield the indicated alkene as the exclusive product of E2 elimination. (а) СH;CH—CH, (b) (CH3)2С—СH2 (c) BRCH=CB12 CH3 (d) CH3arrow_forward• PRACTICE PROBLEM 8.13 Specify the appropriate alkene and reagents for synthesis of each of the following alcohols by hydroboration–oxidation. (a) (c) OH (e) CH3 OH AH OH no mobe OH ( (b) (d) (f) OH HT H3 D OH OH HO OHarrow_forward
- Drawn below are the structures of (+)-menthol and (-)-menthol. These are stereoisomers of one another. They have identical physical properties are indiscernible by most laboratory techniques (e.g. melting point, boiling point, IR spectroscopy), except they interact with polarized light differently (hence the +/- designation). Curiously, they can be perceived differently by humans by our sense of smell. (a) Make a model of the structures or draw them both and describe how they are related geometrically. (b) Why is it that these nearly physically identical compounds can be discerned by our sense of smell? OH HO (+)-menthol (-)-mentholarrow_forward• PRACTICE PROBLEM 6.6 S 2 reactions that involve substitution at a chirality center can be used to relate the configuration of one molecule to another, because we know the SN2 reaction will occur with inversion. (a) Illustrate how this is true by assigning R,S configurations to the 2-chlorobutane enantiomers based on the following data. [The configuration of (-)-2-butanol is given in Section 5.8C.] HO- (+)-2-Chlorobutane (-)-2-Butanol SN2 [a]3 = +36.00 (Enantiomerically pure) [a] = -13.52 (Enantiomerically pure) noin (b) When enantiomerically pure (+)-2-chlorobutane is allowed to react with potassium iodide in acetone in an SN2 reaction, the 2-iodobutane that is produced has a minus optical rotation. What is the configuration of (-)-2-iodobutane? Of (+)-2-iodobutane?arrow_forward(a) Explain how pyrrole is isoelectronic with the cyclopentadienyl anion.(b) Specifically, what is the difference between the cyclopentadienyl anion and pyrrole?(c) Draw resonance forms to show the charge distribution on the pyrrole structure.arrow_forward
- • PRACTICE PROBLEM 8.18 Starting with cyclohexene and using any other needed reagents, outline a synthesis of 7,7-dibromobicyclo[4.1.0]heptane.arrow_forward2. (a) Give the product of the following reaction: Br t-BUOK (b) Using the FMOS of the reacting partners explain why this reaction is expected to occur simply on heating, in the absence of light. (c) Specify the preferred stereoisomer and explain why it is preferred.arrow_forwardReview Problem 5.2 Construct handheld models of the 2-butanols represented in Fig. 5.3 and demonstrate for yourself that they are not mutually superposable. (a) Make similar models of 2-bromo- propane. Are they superposable? (b) Is a molecule of 2-bromopropane chiral? (c) Would you expect to find enantiomeric forms of 2-bromopropane? H но OH H HO HH OH OH HO H CH CH CH C CH CH II II (a) (b) (c) Figure 5.3 (a) Three-dimensional drawings of the 2-butanol enantiomers I and II. (b) Models of the 2-butanol enantiomers. (c) An unsuccessful attempt to superpose models of I and II.arrow_forward
- • PRACTICE PROBLEM 8.25 How would you modify the procedure given in Solved Problem 8.8 so as to synthesize a racemic form of (3R,4R)- and (3S,4S)-3,4-dibromohexane? 099arrow_forwardCH3 CH3 2 Predict the stereochemistry of each of the following reactions: (a) H3C. (d) CH3 LIAIH4 epoxidation CH2 (е) KMNO4 (b) NaBH4 (c) catalytic CH3 hydrogenationarrow_forwardPractice Problem 7.16 When the compound called isoborneol is heated with 9 M sulfuric acid, the product of the reaction is the compound called camphene and not bornylene, as one might expect. Using models to assist you, write a step-by-step mechanism showing how camphene is formed. HO H,O not heat Isoborneol Camphene Bornylenearrow_forward
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