ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259977596
Author: SMITH
Publisher: MCG
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Chapter 14, Problem 14.74P
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Chapter 14 Solutions
ORGANIC CHEMISTRY
Ch. 14 - Problem 14.1 The NMR spectrum of recorded on a ...Ch. 14 - Prob. 14.2PCh. 14 - How many NMR signals does each compound show?
a....Ch. 14 - How many 1H NMR signals does each...Ch. 14 - How many 1H NMR signals does each compound give?...Ch. 14 - Label the protons in each highlighted CH2 group as...Ch. 14 - How many 1H NMR signals would you expect for each...Ch. 14 - Prob. 14.8PCh. 14 - For each compound, first label each different type...Ch. 14 - Label each statement as True or False. a. When a...
Ch. 14 - Prob. 14.11PCh. 14 - Problem 14.12 Which compound give a NMR spectrum...Ch. 14 - Prob. 14.13PCh. 14 - Prob. 14.14PCh. 14 - For each compound give the number of 1H NMR...Ch. 14 - Prob. 14.16PCh. 14 - Prob. 14.17PCh. 14 - Problem 14.18 Describe the NMR spectrum of each...Ch. 14 - Problem 14.19 Draw a splitting diagram for in ,...Ch. 14 - Problem 14.20 Identify A and B, isomers of...Ch. 14 - Problem 14.21 How many signals are present in the ...Ch. 14 - Problem 14.22 What protons in alcohol A give rise...Ch. 14 - How many peaks are observed in the NMR signal for...Ch. 14 -
Problem 14.24 Propose a structure for a compound...Ch. 14 - Problem 14.25 Propose a structure for a compound...Ch. 14 - Problem 14.26. Identify products A and B from the...Ch. 14 - Problem 14.27 How many lines are observed in the ...Ch. 14 - Problem 14.28 Draw all constitutional isomers of...Ch. 14 - Problem 14.29 Esters of chrysanthemic acid are...Ch. 14 - Prob. 14.30PCh. 14 - Problem 14.31 Identify the carbon atoms that give...Ch. 14 - Problem 14.32 A compound of molecular formula ...Ch. 14 - Problem 14.33 Draw the structure of a compound of...Ch. 14 - 14.34 (a) How many NMR signals does each of the...Ch. 14 - 14.35 (a) How many NMR signals does each compound...Ch. 14 - Prob. 14.36PCh. 14 - 14.37 How many NMR signals does each natural...Ch. 14 - Prob. 14.38PCh. 14 - 14.39 What effect does increasing the operating...Ch. 14 - Prob. 14.40PCh. 14 - 14.41 How could you use chemical shift and...Ch. 14 - Prob. 14.42PCh. 14 - 14.43 How can you use NMR spectroscopy to...Ch. 14 - Prob. 14.44PCh. 14 - Prob. 14.45PCh. 14 - Prob. 14.46PCh. 14 - Prob. 14.47PCh. 14 - 14.48 How many NMR signals does each compound...Ch. 14 - 14.49 Rank the highlighted carbon atoms in each...Ch. 14 - 14.50 Identify the carbon atoms that give rise to...Ch. 14 - 14.51 a. How many signals does dimethyl...Ch. 14 - 14.52 Answer the following questions about each of...Ch. 14 - 14.53 Propose a structure consistent with each set...Ch. 14 - 14.54 Identify the structures of isomers A and B...Ch. 14 - 14.55 Reaction of with affords compound W,...Ch. 14 - 14.56 Treatment of with , followed by aqueous
...Ch. 14 - 14.57 Compound C has a molecular ion in its mass...Ch. 14 - 14.58 As we will learn in Chapter 20, reaction of ...Ch. 14 - 14.59 Identify the structures of isomers E and F...Ch. 14 - 14.59 Identify the structures of isomers H and I...Ch. 14 - 14.61 Propose a structure consistent with each set...Ch. 14 - 14.62 Reaction of with , followed by treatment...Ch. 14 - Reaction of aldehyde D with amino alcohol E in the...Ch. 14 - 14.64 Propose a structure consistent with each set...Ch. 14 - 14.65 In the presence of a small amount of acid, a...Ch. 14 - 14.66 Treatment of with affords two products (M...Ch. 14 - 14.67 Compound O has molecular formula and shows...Ch. 14 - 14.68 Compound P has molecular formula . Deduce...Ch. 14 - 14.69 Treatment of with strong base followed by ...Ch. 14 - 14.70 When -bromo--dimethylbutane is treated with...Ch. 14 - 14.71 Propose a structure consistent with each set...Ch. 14 - 14.72 Reaction of unknown A with forms...Ch. 14 - Prob. 14.73PCh. 14 - 14.74 -Annulene shows two signals in its ...Ch. 14 - 14.75 Explain why the spectrum of-methylbutan--ol...Ch. 14 - 14.76 Because has an odd mass number, nuclei...Ch. 14 - 14.77 Cyclohex--enone has two protons on its...
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- Annotate the benzophenone and Triphenylmethanol NMR'sarrow_forwardCompound A exhibits two signals in its 1H NMR spectrum at 2.64 and 3.69 ppm and the ratio of the absorbing signals is 2:3. Compound B exhibits two signals in its 1 H NMR spectrum at 2.09 and 4.27 ppm and the ratio of the absorbing signals is 3:2. Which compound corresponds to dimethyl succinate and which compound corresponds to ethylene diacetate?arrow_forwardWhat is the structure of an unknown compound with molecular formula C6H15N that gives the following 1H NMR absorptions: 0.9 (singlet, 1 H), 1.10 (triplet, 3 H), 1.15 (singlet, 9 H), and 2.6 (quartet, 2 H) ppm?arrow_forward
- The 1H-NMR spectrum of Compound C shows five signals – δ 2.38 (1H, dt), 2.72 (1H, dt), 5.34 (1H, t), 5.49 (2H, ddd), 6.27 (2H, dd) ppm. Its 13C-NMR spectrum has four signals – δ 26, 58, 127, 129 ppm. In the compound’s mass spectrum, the M+1 peak appears at m/z = 115. An M+2 peak, whose intensity is roughly one-third that of the M+1 peak, also appears. Suggest a structure for this compound.arrow_forwardDescribe how you could use NMR spectroscopy to distinguish between benzoyl chloride and para-chlorobenzaldehyde. O The H NMR spectrum of para-chlorobenzaldehyde should have a signal at approximately 6.5-8 ppm corresponding to the aryle protone. The H NMR spectrum of benzoyl chloride should not have a signal near 6.5-8 ppm. O The H NMR spectrum of para-chlorobenzaldehyde should have a signal at approximately 12 ppm. The 'H NMR spectrum of benzoyl chloride should not have a signal near 12 ppm. O The 'H NMR spectrum of para-chlorobenzaldehyde should have a signal at approximately 10 ppm corresponding to the aldehydic protone. The H NMR spectrum of benzoyl chloride should not have a signal near 10 ppm. O The H NMR spectrum of benzoyl chloride should have a signal at approximately 12 ppm. The 'H NMR spectrum of para- chlorobenzaldehyde should not have a signal near 12 ppm.arrow_forwardCompound A exhibits two signals in its 1H NMR spectrum at 2.64 and 3.69 ppm, and the ratio of the absorbing signals is 2:3. Compound B exhibits two signals in its 1H NMR spectrum at 2.09 and 4.27 ppm, and the ratio of the absorbing signals is 3:2. Which compound corresponds to dimethyl succinate, and which compound corresponds to ethylene diacetate?arrow_forward
- In the 1H NMR spectrum of acetone (CH3 -CO-CH3 ) , how many signals will you notice and what will the approximate value be of the signals?arrow_forwardCompound A exhibits two signals in its 'H NMR spectrum at 2.64 and 3.69 ppm and the ratio of the absorbing signals is 2:3. Compound B exhibits two signals in its 'H NMR spectrum at 2.09 and 4.27 ppm and the ratio of the absorbing signals is 3:2. Which compound corresponds to CH;O,CCH,CH2CO,CH3 (dimethyl succinate) and which compound corresponds to CH;CO,CH2CH,O,CCH; (ethylene diacetate)?arrow_forwardInterpret 1H NMR of Ethanoic Acidarrow_forward
- Draw the structure of a compound with the molecular formula C8H₁0 that exhibits five signals in its ¹3C NMR spectrum, four of which appear between 100 and 150 ppm.arrow_forwardCompound A exhibits two signals in its 1H NMR spectrum at 2.64 and 3.69 ppm, and the ratio of the absorbing signals is 2:3. Compound B exhibits two signals in its 1H NMR spectrum at 2.09 and 4.27 ppm, and the ratio of the absorbing signals is 3:2. Which compound corresponds to dimethyl succinate, and which compound corresponds to ethylene diacetate?arrow_forwardIndicate the shift of carbon bonded to an alcohol (-CH₂-OH) (in ppm) in a ¹³C NMR spectrum. 20 90 60 135 O210arrow_forward
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