PKG ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259963667
Author: SMITH
Publisher: MCG
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Textbook Question
Chapter 14, Problem 14.68P
Compound P has molecular formula
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Compound P has molecular formula C5H9ClO2. Deduce the structure of P from its 1H and 13C NMR spectra.
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Compound P has molecular formula C5H9ClO2. Deduce the structure of P from its 1H and 13C NMR spectra.
Chapter 14 Solutions
PKG 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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- Compound H (C8H6O3) gives a precipitate when treated with hydroxylamine in aqueous ethanol and a silver mirror when treated with Tollens solution. Following is its 1H-NMR spectrum. Deduce the structure of compound H.arrow_forwardThe 1H and 13C NMR spectra below belong to a compound with formula C6H10O2. Propose a structure for this compound.arrow_forward16-17 Propylamine (bp 48°C), ethylmethylamine (bp 37°C), and trimethylamine (bp 3°C) are constitutional isomers with the molecular formula C3HgN. Account for the fact that trimethylamine has the lowest boiling point of the three and propylamine has the highest.arrow_forward
- Propose a structural formula for each compound consistent with its 1H-NMR and 13C-NMR spectra. (a) C5H10O2 (b) C7H14O2 (c) C6 H12O2 (d) C7H12O4 (e) C4H7ClO2 (f) C4H6O2arrow_forwardIdentify the structures of isomers A and B (molecular formula C8H9Br).arrow_forwardWhen compound A (C5H12O) is treated with HBr, it forms compound B (C5H11Br). The 1 H NMR spectrum of compound A has a 1H singlet, a 3H doublet, a 6H doublet, and two 1H multiplets. The 1 H NMR spectrum of compound B has a 6H singlet, a 3H triplet, and a 2H quartet. Identify compounds A and B.arrow_forward
- An unknown compound A has the molecular formula C4H3O2. Based on the following H NMR spectrum, what is the structure of compound A? | зн |3H | 2H 11 10 7. 6 3 1 Select one: OHarrow_forwardA compound has the molecular formula C6H12O2. Its IR spectrum shows a strong absorption band near 1740 cm-1. Its 1H NMR spectrum consists of two singlets at δ 1.2 and δ 3.6. Which is the most likely structure of the compound?arrow_forwardAn unknown compound A has the molecular formula C4H8O2. Based on the following 1H NMR spectrum, what is the structure of compound A?arrow_forward
- There are four esters with molecular formula C4H8O2. How can they be distinguished by 1H NMR?arrow_forwardWhen compound A (C5H12O) is treated with HBr, it forms compound B (C5H11Br). The 1H NMR spectrum of compound A has a 1H singlet, a 3H doublet, a 6H doublet, and two 1H multiplets. The 1H NMR spectrum of compound B has a 6H singlet, a 3H triplet, and a 2H quartet. Identify compounds A and B.arrow_forwardCompound B has molecular formula C9H12O. It shows five signals in the 1H-NMR spectrum - a doublet of integral 6 at 1.22 ppm, a septet of integral 1 at 2.86 ppm, a singlet of integral 1 at 5.34 ppm, a doublet of integral 2 at 6.70 ppm, and a doublet of integral 2 at 7.03 ppm. The 13C-NMR spectrum of B shows six unique signals (23.9, 34.0, 115.7, 128.7, 148.9, and 157.4). Identify B and explain your reasoning.arrow_forward
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