Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
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Chapter 14, Problem 35P
Interpretation Introduction
Interpretation:
Thestructure for compound
Concept introduction:
In
The splitting of the molecules is determined by the
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Compound C has the molecular formula C5H8O. The IR, 1H, 13C, and DEPT NMR spectra of this compound are shown below.
(a) Calculate the double bond equivalent of compound C and briefly explain what the values obtains represents. Interpret the IR spectrum.
(b) Based on the information provided, determine the structure of compound D.
Draw the structure of a compound with the formula C5H10O2 (along with the reasons of choosing it) which, upon analysis, gave key peaks in an infrared spectrum at 3450 cm-1 and 1713 cm-1, as well as the following 1H-NMR spectrum.
The 1H and 13C NMR spectra of compound A, C8H9Br are shown below. Answer the following questions.
1(a) Degree of the unsaturation of this compound is = ,
1(b) The derived unsaturation number indicates that compound has ............=
1(c) Two peaks in between 6.5 - 8.0 δ indicate that compound is=
1(d) According to the splitting pattern of the peak at 1.20 δ and 2.58 δ indicates that compound has a .................. group=
1(e) According to the 1H NMR spectrum the number of nonequivalent aromatic proton sets in the compound =
1(f) According to the 13C NMR, the number of nonequivalent carbons in the compound is =
1(g) According to your answer in Q 1(f) the compound has a plane of symmetry Yes or NO =
1(h) The IUAC name for this unknown compound isNOT TOO SURE ABOUT MY ANSWERS, PLEASE CORRECT ME IF I'M WRONG
Chapter 14 Solutions
Organic Chemistry
Ch. 14 - PRACTICE PROBLEM 14.1 Provide a name for each of...Ch. 14 - Prob. 2PPCh. 14 - Prob. 3PPCh. 14 - Practice Problem 14.4 Apply the polygon-and-circle...Ch. 14 - Practice Problem 14.5 Apply the polygon-and-circle...Ch. 14 - Practice Problem 14.6 1,3,5-Cycloheptatriene is...Ch. 14 - Prob. 7PPCh. 14 - Prob. 8PPCh. 14 - Practice Problem 14.9 In 1967 R. Breslow (of...Ch. 14 - Prob. 10PP
Ch. 14 - Practice Problem 14.11 In addition to a signal...Ch. 14 - PRACTICE PROBLEM 14.12
Azulene has an appreciable...Ch. 14 - Practice Problem 14.13 (a) The -Sh group is...Ch. 14 - Practice Problem 14.14
Explain how NMR...Ch. 14 - PRACTICE PROBLEM 14.15 Four benzenoid compounds,...Ch. 14 - Prob. 16PCh. 14 - Write structural formulas and give acceptable...Ch. 14 - Prob. 18PCh. 14 - Prob. 19PCh. 14 - Prob. 20PCh. 14 - Which of the hydrogen atoms shown below is more...Ch. 14 - 14.22 The rings below are joined by a double bond...Ch. 14 - Prob. 23PCh. 14 - 14.24 (a) In 1960 T. Katz (Columbia University)...Ch. 14 - Prob. 25PCh. 14 - Prob. 26PCh. 14 - 14.27 5-Chloro-1,3-cyclopentadiene (below)...Ch. 14 - Prob. 28PCh. 14 - Furan possesses less aromatic character than...Ch. 14 - 14.30 For each of the pairs below, predict...Ch. 14 - Assign structures to each of the compounds A, B,...Ch. 14 - Prob. 32PCh. 14 - Give a structure for compound F that is consistent...Ch. 14 - Prob. 34PCh. 14 - Prob. 35PCh. 14 - A compound (N) with the molecular formula C9H10O...Ch. 14 - The IR and 1H NMR spectra for compound X(C8H10)...Ch. 14 - Prob. 38PCh. 14 - Prob. 39PCh. 14 - 14.39 Given the following information, predict the...Ch. 14 - Consider these reactions: The intermediate A is a...Ch. 14 - Prob. 42PCh. 14 - Compound E has the spectral features given below....Ch. 14 - Draw all of the molecular orbitals for...Ch. 14 - Prob. 1LGPCh. 14 - Prob. 2LGPCh. 14 - 3. The NMR signals for the aromatic hydrogens of...Ch. 14 - Prob. 4LGPCh. 14 - Prob. 5LGPCh. 14 - Prob. 1QCh. 14 - Which is the correct name of the compound shown?...Ch. 14 - Prob. 3QCh. 14 - Prob. 4QCh. 14 - Give the structure of a compound with the formula...Ch. 14 - Prob. 6Q
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- There are two isometric compounds given below. Discuss how they might be distinguished using IR, 1H NMR and 13C NMR spectroscopy for each compound.arrow_forwardCompounds A and B are isomers having the molecular formula C4H8O3. Identify A and B on the basis of their 1H NMR spectra.Compound A: δ 1.3 (3H, triplet); 3.6 (2H, quartet); 4.1 (2H, singlet); 11.1 (1H, broad singlet)Compound B: δ 2.6 (2H, triplet); 3.4 (3H, singlet); 3.7 (2H triplet); 11.3 (1H, broad singlet)arrow_forward(a) Compound A has molecular formula C5H10O. It shows three signals in the 1H-NMR spectrum - a doublet of integral 6 at 1.1 ppm, a singlet of integral 3 at 2.14 ppm, and a quintet of integral 1 at 2.58 ppm. Suggest a structure for A and explain your reasoning. (b) Compound B has molecular formula C8H6O2. The IR, 1H-NMR, and 13C-NMR spectra are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for B and explain your reasoning. (c) Compound C has molecular formula C5H8O. The IR, mass, 1H-NMR, and 13C-NMR spectra are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for C and explain your reasoning.arrow_forward
- (a) Compound A has molecular formula C9H18O but shows only one singlet in the 1H-NMR spectrum. Suggest a structure for A and explain your reasoning. (b) Compound B has molecular formula C10H14. The IR, mass, 1H-NMR, and 13C-NMR speca are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for B and explain your reasoning.arrow_forwardA and B are isomeric dicarbonyl compounds of the molecular formula C5H&O2. The 'H NMR spectrum of A contains a singlet at 2.05 ppm and another singlet at 5.40 ppm. The 'H NMR spectrum of B contains three signals: a singlet at 2.3 ppm, a triplet at 1.10 ppm and a quartet at 2.70 ppm. Suggest structures for A and B and draw them in their respective boxes below. 1st attemptarrow_forwardName the following compounds A and B. How could you distinguish these two molecules by using 1H NMR and IR techniques? Propose an analytical technique to determine the iron content of these compounds. Calculate the mass percentages of C and H of compound B (C: 12.01 g/mol; H: 1.008 g/mol; Fe: 55.845 g/mol).arrow_forward
- Compound A has molecular formula C5H10O. It shows three signals in the 1H-NMR spectrum - a doublet of integral 6 at 1.1 ppm, a singlet of integral 3 at 2.14 ppm, and a quintet of integral 1 at 2.58 ppm. Suggest a structure for A and explain your reasoning.arrow_forwardCompound B has molecular formula C9H10. The IR spectrum is shown below. The 1H-NMR spectrum shows a multiplet at 7.2 ppm integrating to 4H, a triplet at 2.9 ppm integrating to 4H, and a triplet at 2.1 ppm integrating to 2 H. Suggest a structure for B and explain your reasoningarrow_forwardCompound A has prominent infrared absorptions at 1050, 1786, and 1852 cm and shows a single absorption in the proton NMR spectrum at 8 3.00. When heated gently with methanol, compound B, C,H,O,, is obtained. Compound B has IR absorptions at 2500–3000 (broad), 1730, and 1701 cm-, and its proton NMR spectrum in D,0 consists of resonances at & 2.7 (complex splitting) and & 3.7 (a singlet) in the intensity ratio 4:3. Give the structures A and B, omitting stereochemistry.arrow_forward
- Compound p,c6h14O does not react w/sodium metal,doesn't discharge the color of Br2 in ccl4, the H-NMR spectrum shows 2 signal,a 12H doublet at 1.1, and a 2h sextet at 3.6. Propose a structure for this compound,p.arrow_forwardCompound E with a molecular formula C8H7CIO shows a prominent band in its IR spectrum at 1690 cm-1. 'H NMR spectrum revealed only two major types of protons in the ratio of 5: 2. 2 (i) Calculate the degree of unsaturation for compound E. (ii) By using the IR and 'H NMR data given, deduce the structure of compound E.arrow_forwardThere is a Compound called A with the formula C13H20N2O2. In the proton NMR two triplets at 2.8 and 4.3 are coupled to each other. Similarly, a triplet at 1.1 and a quartet at 2.6 are coupled to each other. the carbonyl group appearing at 1669 cm -1 in the IR spectrum has an unusually low value. Please provide the structure of A.arrow_forward
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