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 19, Problem 60P
Write the structures of the three products involved in this reaction sequence:
Spectral data forB:
MS(m/z): 314, 312, 310 (relative abundance 1:2:1)
1HNMR(δ): only 6.80 (s) after treatment with D2O
Data forC:
MS(m/z): 371, 369, 367 (relative abundance 1:2:1)
1HNMR(δ): 2.48 (s) and 4.99 (s) in area ratio 3:1; broad singlets at 5.5 and 11 disappeared after treatment with D2O.
Data forD:
MS(m/z):369(M+⋅−CH3) [when studied as its tris(trimethylsilyl) derivative]
1HNMR(δ): 2.16 (s) and 7.18 (s) in area ratio 3:2; broad singlets at 5.4 and 11 disappeared after treatment with D2O.
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Treatment of 1,3,6-cyclononatriene (Compound 1), or its dimethyl derivative (Compound 2), with potassium amide (KNH₂) in liquid
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As we will learn in Chapter 17, reaction of (CH3)2CO with LIC≡CH followed by H2O affords compound D, which has a molecular ion in its mass spectrum at 84 and prominent absorptions in its IR spectrum at 3600−3200, 3303, 2938, and 2120 cm−1. D shows the following 1H NMR spectral data: 1.53 (singlet, 6 H), 2.37 (singlet, 1 H), and 2.43 (singlet, 1 H) ppm. What is the structure of D?
Chapter 19 Solutions
Organic Chemistry
Ch. 19 - PRACTICE PROBLEM 19.1 (a) Write a mechanism. for...Ch. 19 - Practice Problem 19.2
Since the products obtained...Ch. 19 - Prob. 3PPCh. 19 - PRACTICE PROBLEM 19.4
Write mechanisms that...Ch. 19 - Prob. 5PPCh. 19 - Prob. 6PPCh. 19 - Practice Problem 19.7 The acid-catalyzed aldol...Ch. 19 - Prob. 8PPCh. 19 - Practice Problem 19.9
(a) Provide a mechanism for...Ch. 19 - Prob. 10PP
Ch. 19 - Practice Problem 19.11 Outlined below is a...Ch. 19 - Prob. 12PPCh. 19 - Prob. 13PPCh. 19 - Prob. 14PPCh. 19 - Practice Problem 19.15
Starting with ketones and...Ch. 19 - Practice Problem 19.16 Assuming that dehydration...Ch. 19 - Practice Problem 19.17 What starting compound...Ch. 19 - Practice Problem 19.18
What experimental...Ch. 19 - Prob. 19PPCh. 19 - Practice Problem 19.20
When acrolein (propenal)...Ch. 19 - Prob. 21PPCh. 19 - PRACTICE PROBLEM 19.22
Qutline reasonable...Ch. 19 - Prob. 23PCh. 19 - Show all steps in the following syntheses. You may...Ch. 19 - Prob. 25PCh. 19 - Prob. 26PCh. 19 - Prob. 27PCh. 19 - 19.28 Show how the diketone at the right could be...Ch. 19 - Prob. 29PCh. 19 - 19.30 Write a detailed mechanism for the following...Ch. 19 - Prob. 31PCh. 19 - Prob. 32PCh. 19 - 19.33 Predict the products from each of the...Ch. 19 - Prob. 34PCh. 19 - Show how each of the following transformations...Ch. 19 - Prob. 36PCh. 19 - What reagents would you use to bring about each...Ch. 19 - Prob. 38PCh. 19 - Prob. 39PCh. 19 - 19.40 When the aldol reaction of acetaldehyde is...Ch. 19 - Prob. 41PCh. 19 - Prob. 42PCh. 19 - 19.43 The following reaction illustrates the...Ch. 19 - What is the structure of the cyclic compound that...Ch. 19 - Prob. 45PCh. 19 - Prob. 46PCh. 19 - Prob. 47PCh. 19 - Predict the products from the following reactions....Ch. 19 - Prob. 49PCh. 19 - 19.50 (+)-Fenchone is a terpenoid that can be...Ch. 19 - Prob. 51PCh. 19 - Prob. 52PCh. 19 - Prob. 53PCh. 19 - Prob. 54PCh. 19 - The Perkin condensation is an aldol-type...Ch. 19 - 19.55 (a) Infrared spectroscopy provides an easy...Ch. 19 - Prob. 57PCh. 19 - 19.61 Provide a mechanism for each of the...Ch. 19 - 19.62 (a) Deduce the structure of product A,...Ch. 19 - 19.60 Write the structures of the three products...Ch. 19 - Prob. 1LGPCh. 19 - Which hydrogen atoms in the following ester are...Ch. 19 - Prob. 2QCh. 19 - 19.3 What starting materials could be used in a...Ch. 19 - Supply the missing reagents, intermediates, and...Ch. 19 - Prob. 5QCh. 19 - Prob. 6QCh. 19 - Prob. 7QCh. 19 - Prob. 8Q
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