Organic Chemistry, Loose-leaf Version
8th Edition
ISBN: 9781305865549
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Question
Chapter 23, Problem 23.41P
Interpretation Introduction
Interpretation:
The structural formula for given
Concept Introduction:
Hofmann elimination:
The formation of
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An amine of unknown structure contains one nitrogen and nine carbon atoms. The 13C-NMR spectrum shows only five signals, all between 20 and 60 ppm. Three cycles of Hofmann elimination sequence [(1) CH3I; (2) Ag2O, H3O; (3) heat] give trimethylamine and 1,4,8-nonatriene. Propose a structural formula for the amine.
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Chapter 23 Solutions
Organic Chemistry, Loose-leaf Version
Ch. 23.1 - Prob. 23.1PCh. 23.2 - Prob. 23.2PCh. 23.2 - Prob. 23.3PCh. 23.2 - Prob. 23.4PCh. 23.5 - Prob. 23.5PCh. 23.5 - Prob. AQCh. 23.5 - What is the hybridization of the nitrogen in...Ch. 23.5 - Prob. CQCh. 23.5 - The pKas of the conjugate acids of aniline and...Ch. 23.5 - Prob. EQ
Ch. 23.5 - Prob. FQCh. 23.5 - Prob. GQCh. 23.5 - Select the stronger acid from each pair of...Ch. 23.6 - Prob. 23.7PCh. 23.6 - Prob. 23.8PCh. 23.6 - Prob. 23.9PCh. 23.7 - Prob. 23.10PCh. 23.8 - Prob. 23.11PCh. 23.8 - Prob. 23.12PCh. 23.8 - Prob. 23.13PCh. 23.9 - Prob. 23.14PCh. 23.10 - In Example 23.15, you considered the product of...Ch. 23 - Prob. 23.16PCh. 23 - Prob. 23.17PCh. 23 - Prob. 23.18PCh. 23 - Prob. 23.19PCh. 23 - Prob. 23.20PCh. 23 - Prob. 23.21PCh. 23 - Prob. 23.22PCh. 23 - Account for the formation of the base peaks in...Ch. 23 - Prob. 23.24PCh. 23 - Select the stronger base from each pair of...Ch. 23 - The pKa, of the conjugate acid of morpholine is...Ch. 23 - Which of the two nitrogens in pyridoxamine (a form...Ch. 23 - Prob. 23.28PCh. 23 - Prob. 23.29PCh. 23 - Prob. 23.30PCh. 23 - Prob. 23.31PCh. 23 - Suppose you have a mixture of these three...Ch. 23 - Prob. 23.33PCh. 23 - Prob. 23.34PCh. 23 - Prob. 23.35PCh. 23 - Prob. 23.36PCh. 23 - Prob. 23.37PCh. 23 - (S)-Glutamic acid is one of the 20 amino acid...Ch. 23 - Prob. 23.39PCh. 23 - Propose a structural formula for the compound...Ch. 23 - Prob. 23.41PCh. 23 - The pyrolysis of acetic esters to give an alkene...Ch. 23 - Propose steps for the following conversions using...Ch. 23 - Show how to bring about each step in this...Ch. 23 - Show how to bring about each step in the following...Ch. 23 - Prob. 23.48PCh. 23 - Prob. 23.49PCh. 23 - Methylparaben is used as a preservative in foods,...Ch. 23 - Prob. 23.51PCh. 23 - Prob. 23.52PCh. 23 - Propose a synthesis for the systemic agricultural...Ch. 23 - Prob. 23.54PCh. 23 - Several diamines are building blocks for the...Ch. 23 - Prob. 23.56PCh. 23 - Prob. 23.57PCh. 23 - Prob. 23.58PCh. 23 - Prob. 23.59PCh. 23 - Following is a retrosynthesis for the coronary...Ch. 23 - Prob. 23.61PCh. 23 - Prob. 23.62PCh. 23 - Given this retrosynthetic analysis, propose a...Ch. 23 - Prob. 23.64PCh. 23 - Following is a series of anorexics (appetite...Ch. 23 - Prob. 23.66PCh. 23 - Prob. 23.67PCh. 23 - Show how the synthetic scheme developed in Problem...Ch. 23 - Prob. 23.69PCh. 23 - Prob. 23.70PCh. 23 - Prob. 23.71PCh. 23 - Prob. 23.72P
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- A hydrocarbon, compound B, has molecular formula C6H6, and gave an NMR spectrum with two signals: delta 6.55 pm and delta 3.84 pm with peak ratio of 2:1. When warmed in pyridine for three hr, compound B quantitatively converts to benzene. Mild hydrogenation of B yielded another compound C with mass spectrum of m/z 82. Infrared spectrum showed no double bonds; NMR spectrum showed one broad peak at delta 2.34 ppm. With this information, address the following questions. a) How many rings are in compound C? b) How many rings are probably in B? How many double bonds are in B? c) Can you suggest a structure for compounds B and C? d) In the NMR spectrum of B, the up-field signal was a quintet, and the down field signal was a triplet. How must you account for these splitting patterns?arrow_forwardFollowing are 1H-NMR spectra for compounds B (C6H12O2) and C (C6H10O). Upon warming in dilute acid, compound B is converted to compound C. Deduce the structural formulas for compounds B and C.arrow_forwardCompare the 13C NMR spectra of isoborneol and camphor. Explain which peaks can be used to determine whether the oxidation was successful. Propose a mechanism for this oxidation. To simplify the structures, use benzyl alcohol to draw the mechanism instead of isoborneol. Include the formation of any byproduct(s) in the mechanism.arrow_forward
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