Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
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Textbook Question
Chapter 18, Problem 2PP
Practice Problem 18.2
Would optically active
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Quinapril (trade name Accupril) is used to treat high blood pressure and congestive heart failure. One step in the synthesis of quinapril involves reaction of the racemic alkyl bromide A with a single enantiomer of the amino ester B. (a) What two products are formed in this reaction? (b) Given the structure of quinapril, which one of these two products is needed to synthesize the drug?
Practice Problem 19.54
Z Your answer is partially correct. Try again.
Predict the major product(s) (A - K) from the treatment of acetone with the following compounds (a-c):
NH2
HO
Eto
OEt
A:
B:
C:
D:
E:
F:
OH
OH
но
CN
G:
H:
I:
J:
(a) [H*], excess EtOH, (-H20)
Major Product(s):
(ь) NaBH4, Meон
B
Major Product(s):
(c) LAH followed by H20
Major Product(s):
SHOW HINT
(a) Draw two different halo ketones that can form A by an intramolecular alkylation reaction. (b) How can A be synthesized by an acetoacetic ester synthesis?
Chapter 18 Solutions
Organic Chemistry
Ch. 18 - Prob. 1PPCh. 18 - Practice Problem 18.2 Would optically active...Ch. 18 - Prob. 3PPCh. 18 - Practice Problem 18.4 Why do we say that the...Ch. 18 - Prob. 5PPCh. 18 - Practice Problem 18.6 (a) Write a reaction...Ch. 18 - PRACTICE PROBLEM 18.7
Show how you would use the...Ch. 18 - Practice Problem 18.8 The acetoacetic ester...Ch. 18 - Practice Problem 18.9
In the synthesis of the keto...Ch. 18 - PRACTICE PROBLEM 18.10 How would you use the...
Ch. 18 - PRACTICE PROBLEM 18.11
How would you use the...Ch. 18 - PRACTICE PROBLEM 18.12 Outline all steps in a...Ch. 18 - PRACTICE PROBLEM 18.13
The antiepileptic drug...Ch. 18 - PRACTICE PROBLEM 18.14 Show how you could employ...Ch. 18 - Prob. 15PCh. 18 - Treating a solution of cis-1-decalone with base...Ch. 18 - Prob. 17PCh. 18 - Prob. 18PCh. 18 - Prob. 19PCh. 18 - Prob. 20PCh. 18 - Prob. 21PCh. 18 - Prob. 22PCh. 18 - Prob. 23PCh. 18 - The synthesis of cyclobutanecarboxylic acid given...Ch. 18 - Prob. 25PCh. 18 - Prob. 26PCh. 18 - Prob. 27PCh. 18 - Prob. 28PCh. 18 - Compound J, a compound with two four-membered...Ch. 18 - Prob. 30PCh. 18 - Prob. 31PCh. 18 - 18.32 Shown below is a synthesis of the elm bark...Ch. 18 - 18.33 (a) A compound U gives a negative iodoform...Ch. 18 - 18.34 Compound A has the molecular formula and...Ch. 18 - Prob. 35PCh. 18 - 1. -Carotene is a highly conjugated hydrocarbon...Ch. 18 - Dehydroabietic acid is a natural product isolated...Ch. 18 - Prob. 1QCh. 18 - Prob. 2QCh. 18 - Prob. 3QCh. 18 - Prob. 4QCh. 18 - Prob. 5Q
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- 24.82 When the compound shown here is heated, ethene gas is evolved and a product with the formula C14H3O2 is formed. The 'H NMR and 13C NMR spectra of C14H8O2 are shown below. (There are two signals >150 ppm in the 13C NMR spectrum. Recall that the 13C NMR signal at 77 ppm is from the CDCI3 solvent.) (a) Draw the structure of C,14H3O2. (b) Draw the mechanism that accounts for its formation. (c) What is the main driving force that favors the products of this reaction? ? C14H3O2 C14H8O2 9. 8 7 6 4 3 2 1 250 200 150 100 50 Chemical shift (ppm) Chemical shift (ppm)arrow_forward(a) Draw two different halo ketones that can form A by an intramolecularalkylation reaction. (b) How can A be synthesized by an acetoacetic estersynthesis?arrow_forwardplease help with this question. thank you. The following sequence, beginning with a cyclic hemiacetal (compound A), was part of a recently reported enantiospecific synthesis of a powerful sex pheromone (currently used in pest management) of the mealybug Pseudococcus viburni: Draw the structures of compound B and C. Provide a plausible mechanism to explain the transformation from compound C into compound D. Identify the reagents you would need to convert compound D into compound F (in just two steps). Also identify the structure of compound E.arrow_forward
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- • PRACTICE PROBLEM 18.14 Show how you could employ enamines in syntheses of the following compounds: Een önös (c) (a) (b) (d) OEtarrow_forwardThe following questions pertain to the esters shown and behavior under conditions of the Claisen condensation.(a) Two of these esters are converted to β-keto esters in good yield on treatment with sodium ethoxide and subsequent acidification of the reaction mixture. Which two are these? Write the structure of the Claisen condensation product of each one. (b) One ester is capable of being converted to a β-keto ester on treatment with sodium ethoxide, but the amount of β-keto ester that can be isolated after acidification of the reaction mixture is quite small. Which ester is this? (c) One ester is incapable of reaction under conditions of the Claisen condensation. Which one? Why?arrow_forwardWhen phenyl 3,4-dimethylbenzoate undergoes electrophilic aromatic substitution, one ring reacts much more readily than the other. (a) Which one is it? Encircle the ring (b) Explain your answer. (c) Draw the resulting product/s when it undergoes bromination reaction. Product (c) (a) Explanation (b)arrow_forward
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