ORGANIC CHEMISTRY W/ALEKS
6th Edition
ISBN: 9781264905430
Author: SMITH
Publisher: MCG CUSTOM
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Chapter 15, Problem 54P
Thymol (molecular formula
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Thymol (molecular formula C10H14O) is the major component of the oil of thyme. Thymol shows IR absorptions at 3500–3200, 3150–2850, 1621, and 1585 cm−1. The 1H NMR spectrum of thymol is given below. Propose a possible structure for thymol.
Propose a structure given the 1H and 13C NMR spectra of the unknown compound. Assign chemical shifts to corresponding hydrogen and carbon atoms
Molecular Formula: C5H10O3
C5H10O2 H
Determine H and C Spectra for the compund
Chapter 15 Solutions
ORGANIC CHEMISTRY W/ALEKS
Ch. 15.2 - Prob. 1PCh. 15.2 - Problem 17.2 What orbitals are used to form the...Ch. 15.3 - Prob. 4PCh. 15.3 - Problem-17.5 What is the structure of propofol,...Ch. 15.6 - Prob. 7PCh. 15.8 - Prob. 8PCh. 15.8 - Prob. 11PCh. 15.8 - Prob. 12PCh. 15.8 - Problem 17.16 Rank the following compounds in...Ch. 15.8 - Problem 17.17 Draw the seven resonance structures...
Ch. 15 - 17.23 Name each compound and state how many lines...Ch. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - 17.27 Give the IUPAC name for each compounds.
a....Ch. 15 - 17.28 Draw a structure corresponding to each...Ch. 15 - 17.29 a. Draw the 14 constitutional isomers of...Ch. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - 17.38
How many electrons does C contain?
How...Ch. 15 - Prob. 36PCh. 15 - 17.40 Explain the observed rate of reactivity of...Ch. 15 - 17.41 Draw a stepwise mechanism for the following...Ch. 15 - Prob. 39PCh. 15 - 17.43 Draw additional resonance structures for...Ch. 15 - Prob. 41PCh. 15 - Prob. 42PCh. 15 - 17.46 Which compound in each pair is the stronger...Ch. 15 - 17.47 Treatment of indene with forms its...Ch. 15 - Prob. 45PCh. 15 - 17.49 Draw the conjugate bases of pyrrole and...Ch. 15 - 17.50 a. Explain why protonation of pyrrole occurs...Ch. 15 - Prob. 48PCh. 15 - Prob. 49PCh. 15 - 17.53 How many signals does each compound...Ch. 15 - 17.54 Which of the diethylbenzene isomers (ortho,...Ch. 15 - 17.55 Propose a structure consistent with each...Ch. 15 - 17.56 Propose a structure consistent with each...Ch. 15 - 17.57 Thymol (molecular formula ) is the major...Ch. 15 - 17.58 You have a sample of a compound of molecular...Ch. 15 - 17.59 Explain why tetrahydrofuran has a higher...Ch. 15 - 17.60 Rizatriptan (trade name Maxalt) is a...Ch. 15 - 17.61 Zolpidem (trade name Ambien) promotes the...Ch. 15 - 17.62 Answer the following questions about...Ch. 15 - 17.63 Stanozolol is an anabolic steroid that...Ch. 15 - Prob. 61P
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- Compound I (C11H14O2) is insoluble in water, aqueous acid, and aqueous NaHCO3, but dissolves readily in 10% Na2CO3 and 10% NaOH. When these alkaline solutions are acidified with 10% HCl, compound I is recovered unchanged. Given this information and its 1H-NMR spectrum, deduce the structure of compound I.arrow_forwardPropose a structural formula for the analgesic phenacetin, molecular formula C10H13NO2, based on its 1H-NMR spectrum.arrow_forwardA ¹H NMR spectrum is shown for a molecule with the molecular formula of C10H12O4. Draw the structure that best fits this data. 1H 11 10 2H 2H U 7 1H 1H ΤΗ 1Η ppm Qarrow_forward
- Thymol (molecular formula C10H14O) is the major component of the oil ofthyme. Thymol shows IR absorptions at 3500–3200, 3150–2850, 1621, and1585 cm−1. The 1H NMR spectrum of thymol is given below. Propose apossible structure for thymol.arrow_forwardPredict the ¹H NMR spectrum of diethoxymethane.arrow_forwardThe 'H NMR spectrum of compound A (C3H100) has four signals: a multiplet at 8 = 7.25-7.32 ppm (5 H), a singlet at d = 5.17 ppm (1 H), a quartet at d = 4.98 ppm (1 H), and a doublet at ô = 1.49 ppm (3 H). There are 6 signals in its 13C NMR spectrum. The IR spectrum has a broad absorption in the -3200 cm-1 region. Compound A reacts with KMNO4 in a basic solution followed by acidification to give compound B with the molecular formula C7H6O2. Draw structures for compounds A and B.arrow_forward
- Compound B of molecular formula C9H19N shows a noteworthy infrared absorption at 3300 cm-1. Its 1H-NMR spectrum shows three singlets – δ 1.0 (6H), 1.1 (12H), 1.4 (1H) ppm. Its 13C-NMR spectrum has four signals – δ 25, 28, 41, 64 ppm. Suggest a structure for this compound.arrow_forwardThe 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_forwardA 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_forward
- Propose a structure for compound X (molecular formula C6H12O2), which gives a strong peak in its IR spectrum at 1740 cm−1. The 1H NMR spectrum of X shows only two singlets, including one at 3.5 ppm. The 13C NMR spectrum is given below. Propose a structure for X.arrow_forwardThe 1H-NMR spectrum of Compound D of molecular formula C10H12O shows three singlets – δ 2.20 (6H, s), 4.86 (4H), 7.10 (2H) ppm. Its 13C-NMR spectrum has five signals – 20, 74, 127, 135, 146 ppm. Suggest a structure for this compound.arrow_forwardAn unknown compound C3H2NCl shows moderately strong IR absorptions around 1650 cm-1 and 2200 cm-1. Its NMR spectrum consists of two doublets (J = 14 Hz) at δ 5.9 and δ 7.1. Propose a structure consistent with this data?arrow_forward
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