Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Textbook Question
Chapter 7, Problem 11PP
Practice Problem 7.11
(a) When cis-1-bromo-2-methylcyclohexane undergoes an E2 reaction, two products (cycloalkenes) are formed. What are these two cycloalkenes, and which would you expect to be the major product? Write conformational structures showing how each is formed.
(b) When trans-1-bromo-2-methylcydohexaoe reacts in an E2 reaction, only one cycloalkene is formed. What is this product? Write conformational structures showing why it is the only product.
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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)
When heated with a solution of sodium ethoxide in ethanol, compound A (C7H15Br) produces a mixture of two alkenes B and C, each of which has the molecular formula C7H14 . Catalytic hydrogenation of major isomer B or minor isomer C produces only 3-ethylpentane. Suggest the structures and mechanisms for compounds A, B, and C consistent with these observations.
2. (a) Reaction of an alkene with ozone followed by an
oxidative workup gives the product shown. What is the
structure of alkene A?
A
(b) Compounds B and C both have the
formula C10H16. Hydrogenation of either
compound over Pt gives the same product,
cis-1-isopropyl-4-methylcyclohexane.
Ozonolysis with reductive workup
fragments the two compounds differently,
as shown below. What are the structures of C
B and C? (CHCl3, chloroform, is the
solvent.)
B
1) 03, CHCI 3
2) (CH3)2S
1) 03, CHC13
2) (CH3)2S
H
O
1) 03
2) H₂O2, H₂O
H3C-
H
O
CH3
3. (a) Draw the structures of all enols that would spontaneously form this ketone,
including stereoisomers.
+
+
I
HO₂C
H
+
La
CH3CH₂-C-CH(CH3)2
O=
(b) Would alkyne hydration be a good preparative method for this compound? If so, give the reaction. If not,
explain why.
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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