EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
3rd Edition
ISBN: 9780133858501
Author: Bruice
Publisher: PEARSON CO
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Chapter 13, Problem 41P
Interpretation Introduction
Interpretation:
Mechanism of the given reaction has to be given.
Concept Introduction:
Claisen Condensation is the reaction of an ester having
Mechanism for Claisen Condensation:
- A base abstracts a proton from the
- The enolate ion gets attached to the carbonyl carbon of another ester.
- The negative charge on oxygen of the carbonyl group reforms, by removing an alkoxide ion.
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When an unknown amine reacts with an unknown acid chloride, an amide with a molecular mass of 163 g/mol (M* = 163 m/z)
is formed. In the infrared spectrum, important absorptions appear at 1661, 750 and 690 cm. The 13C NMR and DEPT spectra
are provided. Draw the structure of the product as the resonance contributor lacking any formal charges.
13C NMR
DEPT 90
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120
80
40
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DEPT 135
T
200
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Draw the unknown amide.
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Chapter 13 Solutions
EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
Ch. 13.1 - Identify the most acidic hydrogen in each...Ch. 13.1 - Prob. 2PCh. 13.1 - Prob. 3PCh. 13.1 - Prob. 4PCh. 13.1 - Explain why HO cannot remove a proton from the...Ch. 13.2 - Prob. 6PCh. 13.2 - Prob. 7PCh. 13.3 - Prob. 8PCh. 13.3 - Prob. 9PCh. 13.3 - Prob. 10P
Ch. 13.4 - Prob. 11PCh. 13.5 - Prob. 12PCh. 13.5 - Prob. 13PCh. 13.6 - Prob. 14PCh. 13.7 - Prob. 16PCh. 13.8 - Prob. 17PCh. 13.8 - Prob. 18PCh. 13.8 - Prob. 19PCh. 13.9 - Prob. 20PCh. 13.10 - Propose a mechanism for the formation of...Ch. 13.10 - Prob. 22PCh. 13.10 - a. If the biosynthesis of palmitic acid were...Ch. 13 - Draw the enol tautomers for each of the following...Ch. 13 - Number the following compounds in order from...Ch. 13 - Prob. 26PCh. 13 - Explain why the pKa of a hydrogen bonded to the...Ch. 13 - Prob. 28PCh. 13 - Prob. 29PCh. 13 - Prob. 30PCh. 13 - Prob. 31PCh. 13 - Prob. 32PCh. 13 - Prob. 33PCh. 13 - Using cyclopentanone as the reactant, show the...Ch. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - Prob. 37PCh. 13 - Prob. 38PCh. 13 - Prob. 39PCh. 13 - Prob. 40PCh. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - Prob. 43PCh. 13 - Prob. 44PCh. 13 - Describe how the following compounds can be...Ch. 13 - Prob. 46PCh. 13 - Which would require a higher temperature:...Ch. 13 - Prob. 48PCh. 13 - Propose a mechanism for the following reaction:Ch. 13 - Show how the following compounds could be...Ch. 13 - Prob. 51PCh. 13 - Prob. 52P
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