Organic Chemistry, 12e Study Guide/Student Solutions Manual
12th Edition
ISBN: 9781119077329
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Textbook Question
Chapter 20, Problem 45P
Compound W
Figure 20.6 The
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A compound A of mass 114 has the following elemental analysis: C = 63.14%, H=8.83%.
The IR, 1H NMR and 13C NMR spectra are given below.
1) Assign and interpret all the data from the 1H NMR and 13C NMR spectra. Propose a formula
for A.
7.0
175
с
3000
1,3; 13
I=1
6.0
150
I=1
с
5.0
CH₂
125
2000
Explain why the answer is this one :
CH,—CH,—0
4,2; 60
mavermy
I=2
cm-1
4.0
100
1500
3.0
75
135
167 |
CH₂
6
125
CH 3
1,95 ; 18
I=3
1000
2.0
50
H
5,5
I=3
1.0
CH₂
CH₂
25
500
Ppm
ppm
An unknown compound has the formula C4H12O. Elucidate its structure by scrutinizing its 1H NMR spectra, shown. Specifically, label each different type of H atom in the final structure with its NMR chemical shift in ppm.
Treatment of compound C (molecular formula C9H12O) with PCC affords D (molecular formula C9H10O). Use the 1H NMR and IR spectra of D to determine the structures of both C and D.
Chapter 20 Solutions
Organic Chemistry, 12e Study Guide/Student Solutions Manual
Ch. 20 - Prob. 1PPCh. 20 - Prob. 2PPCh. 20 - Practice Problem 20.3
Write a mechanism that...Ch. 20 - Prob. 4PPCh. 20 - PRACTICE PROBLEM 20.5 Outline a preparation of...Ch. 20 - Prob. 6PPCh. 20 - Prob. 7PPCh. 20 - Prob. 8PPCh. 20 - Prob. 9PPCh. 20 - Prob. 10PP
Ch. 20 - Practice Problem 20.11 In the preceding examples...Ch. 20 - Prob. 12PPCh. 20 - Prob. 13PPCh. 20 - Practice Problem 20.14
Outline a synthesis of...Ch. 20 - Prob. 15PPCh. 20 - Prob. 16PPCh. 20 - Prob. 17PPCh. 20 - Prob. 18PPCh. 20 - Prob. 19PCh. 20 - 20.20 Give common or systematic names for each of...Ch. 20 - Which is the most basic nitrogen in each compound?...Ch. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Show how you might synthesize each of the...Ch. 20 - Prob. 25PCh. 20 - 20.26 Provide the major organic product from each...Ch. 20 - Prob. 27PCh. 20 - 20.28 What products would you expect to be formed...Ch. 20 - Prob. 29PCh. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Write equations for simple chemical rests or state...Ch. 20 - Prob. 33PCh. 20 - Explain the following, including mention of key...Ch. 20 - 20.35 Provide a detailed mechanism for each of the...Ch. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - Prob. 39PCh. 20 - 20.40 Give structures for compounds R-W:
Ch. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Diethylpropion (shown here) is a compound used in...Ch. 20 - Prob. 44PCh. 20 - 20.45 Compound W is soluble in dilute aqueous HCI...Ch. 20 - 20.46 Propose structures for compounds X, Y, and...Ch. 20 - Compound A(C10H15N) is soluble in dilute HCI. The...Ch. 20 - Prob. 48PCh. 20 - Prob. 49PCh. 20 - For each of the following, identify the product...Ch. 20 - 20.51 Develop a synthesis for the following...Ch. 20 - 20.52 When phenyl isochiocyanatc, , is reduced...Ch. 20 - Prob. 53PCh. 20 - 20.54 Propose a mechanism that can explain the...Ch. 20 - When acetone is treated with anhydrous ammonia in...Ch. 20 - Prob. 56P
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- Identify the structures of isomers H and I (molecular formula C8H11N).a.Compound H: IR absorptions at 3365, 3284, 3026, 2932, 1603, and 1497 cm−1b.Compound I: IR absorptions at 3367, 3286, 3027, 2962, 1604, and 1492 cm−1arrow_forwardThe HNMR , CNMR , 2D NMR SPECTRA OF COMPOUND M1 ARE ATTACHED. WHAT IS STRUCTURE OF IT ? IS IT SYMMETRICAL REGARDS TO ITS CNMR SPECTRUM ? WHAT IS THE STRUCTURE SUGGESTION AND WHY ?arrow_forwardCompound X (molecular formula C10H120) was treated with NH2NH2, ¯OH to yield compound Y (molecular formula C10H14). Match the 1H NMR spectra of X and Y to the corresponding structures of X and Y. Compound NH2NH2 Compound 'H NMR of X 6 H OH Y 1 H 5H 8. 6. 4 ppm or H NMR of Y 6 H 2H 5H 1 H multiplet multiplet 8. 6. 4. 3. 1 nnm 2. 2. 3, O:arrow_forward
- A molecule of the molecular formula C5H11Br gives rise to the NMR spectrum below. When reacted with NaOH and water, it forms a product which by NMR has 2 protons 1H at 5.4 ppm and 1H at 5.5 ppm each having a 3J coupling of 17 Hz. (other protons also present) The product also has an IR stretch at 1550 cm 1. Provide the structures of the starting material and product. NaOH H,0 C;H„Br 6H triplet 4H quintet 1H quintet 10 8 Ppmarrow_forwardAnalysis of a sweet-smelling, neutral compound of carbon, hydrogen and oxygen produced the following results: %C = 54.5; %H = 9.1. From its mass spectrum, the molecular ion had a mass/charge ratio of 88. Its infra-red spectrum showed a prominent peak at 1735 cm–1. Figure below shows the NMR spectrum of the compound. Which of the following is this compound? A. 3-hydroxybutanalB. Methyl propionateC. Ethyl acetateD. 2-methylpropanoic acidE. Methoxyacetonearrow_forwardAn organic compound B with formula C6H14O has the following: IR Spectroscopy 2974 cm-1, 1080 cm-1 Mass Spectrometry 102 (M+), 87, 73 1H NMR Spectroscopy Eight signals at δ 1.10 (d, 3H), 1.13 (dd, 3H), 1.14 (dd, 3H), 1.59 (ddq, 1H), 1.60 (ddq, 1H), 3.19 (ddq, 1H), 3.51 (dq, 1H), 3.50 (dq, 1H). Compound B is obtained by the reaction of compound A with NaH followed by CH3CH2Br. The stereochemistry of A is "S" Using this information, deduce a plausible structure for Compound A with correct stereochemistry.arrow_forward
- A molecule of the molecular formula C5H11Br gives rise to the NMR spectrum below. When reacted with NaOH and water, it forms a product which by NMR has 2 protons 1H at 5.4 ppm and 1H at 5.5 ppm each having a J coupling of 17 Hz. (other protons also present) The product also has an IR stretch at 1550 cm1. Provide the structures of the starting material (1 pt) and product (2 pts) NaOH H20 C5H1,Br 6H triplet 4H quintet 1H quintet 10 8 7 6. 4 3 1 HSP-06-347 ppmarrow_forwardTreatment of butan-2-one (CH3COCH2CH3) with strong base followed by CH3I forms a compound Q, which gives a molecular ion in its mass spectrum at 86. The IR (> 1500 cm−1 only) and 1H NMR spectra of Q are given below. What is the structure of Q?arrow_forwardCompound X of the molecular formula C7H10 has the 13C NMR spectrum (5 signals) shown below. On treatment with excess H2/Pt (catalytic hydrogenation), X is converted to methylcyclohexane. Propose a structure for X and justify your reasoning by clearly labeling each carbon signal and write out the reaction. 200 180 160 140 120 100 80 60 40 20arrow_forward
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