ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
10th Edition
ISBN: 9781259972348
Author: Carey
Publisher: MCG CUSTOM
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Chapter 14, Problem 53P
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Chapter 14 Solutions
ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
Ch. 14.3 - Prob. 1PCh. 14.3 - Prob. 2PCh. 14.4 - The 1H NMR signal for bromoform (CHBr3) appears at...Ch. 14.5 - identify the most shielded and least shielded...Ch. 14.5 - (a) Assign the chemical shifts 1.6, 2.2, and 4.8...Ch. 14.5 - Assign the chemical shifts 1.1, 1.7, 2.0, and 2.3...Ch. 14.5 - Assign the chemical shifts 1.6, 4.0, 7.5, 8.2, and...Ch. 14.6 - The 300-MHz 1H NMR spectrum of 1,4-dimethylbenzene...Ch. 14.6 - Prob. 9PCh. 14.6 - How many signals would you expect to find in the...
Ch. 14.7 - Describe the appearance of the 1H NMR spectrum of...Ch. 14.8 - Describe the appearance of the 1H NMR spectrum of...Ch. 14.11 - Prob. 13PCh. 14.11 - Prob. 14PCh. 14.12 - Hydrogen bonding between the oxygen of dimethyl...Ch. 14.14 - Prob. 16PCh. 14.15 - The 13C NMR spectrum of 1-bromo-3-chloropropane...Ch. 14.15 - Consider carbons x, y, and z in p-methylanisole....Ch. 14.15 - Prob. 19PCh. 14.16 - To which of the compounds of Problem 14.16 does...Ch. 14.18 - DEPT spectra for a compound with the formula...Ch. 14.20 - Vibrational frequencies are sensitive to isotopic...Ch. 14.21 - Prob. 23PCh. 14.22 - Prob. 24PCh. 14.23 - Prob. 25PCh. 14.23 - Which one of the C5H8 isomers shown has its max at...Ch. 14.24 - Knowing what to look for with respect to isotopic...Ch. 14.24 - The base peak appears at m/z105 for one of the...Ch. 14.24 - Mass spectra of 1-bromo-4-propylbenzene and...Ch. 14.25 - Prob. 30PCh. 14 - Each of the following compounds is characterized...Ch. 14 - Deduce the structure of each of the following...Ch. 14 - From among the isomeric compounds of molecular...Ch. 14 - The H1NMR spectrum of fluorene has signals at 3.8...Ch. 14 - Prob. 35PCh. 14 - H1NMR spectra of four isomeric alcohols with...Ch. 14 - Prob. 37PCh. 14 - We noted in Section 14.13 that an NMR spectrum is...Ch. 14 - Identify each of the C4H10O isomers on the basis...Ch. 14 - A compound (C3H7ClO2) exhibited three peaks in its...Ch. 14 - Label nonequivalent carbons in the following...Ch. 14 - Compounds A and B are isomers of molecular formula...Ch. 14 - C13 NMR spectra for four isomeric alkyl bromides...Ch. 14 - Prob. 44PCh. 14 - Prob. 45PCh. 14 - Identify the C3H5Br isomers on the basis of the...Ch. 14 - Prob. 47PCh. 14 - A compound (C8H10O) has the IR and H1NMR spectra...Ch. 14 - Deduce the structure of a compound having the...Ch. 14 - Figure 14.53 presents IR, H1NMR, C13NMR and mass...Ch. 14 - H1NMR, C13NMR, IR, and mass spectra are shown for...Ch. 14 - 1H NMR and IR spectra for a compound with the...Ch. 14 - FriedelCraftsalkylation of benzene with...Ch. 14 - Prob. 54DSPCh. 14 - Prob. 55DSPCh. 14 - Prob. 56DSPCh. 14 - Prob. 57DSPCh. 14 - Prob. 58DSP
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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_forward5. How does the proton (¹H) NMR of the methyl benzoate reagent compare to the methyl 3-nitrobenzoate product? Include (or illustrate) the NMR plots and peak assignments for each.arrow_forwardWhat is the purpose for all of the following ? Carry out an electrophilic aromatic substitution reaction Prepare methyl m-nitrobenzoate by the nitration of methyl benzoate Verify the identity of a product through infrared spectroscopyarrow_forward
- For each compound shown below,(1) sketch the 13C NMR spectrum (totally decoupled, with a singlet for each type of carbon), showing approximatechemical shifts.(2) show the multiplicity expected for each signal in the off-resonance-decoupled spectrum.(3) sketch the spectra expected using the DEPT-90 and DEPT-135 techniques. 3-chloropropenearrow_forward(a) The 'H-NMR spectrum of cyclobutanone shows two signals - signal A at 3.00 ppm and signal B at 1.95 ppm. Give the multiplicity of each signal. cyclobutanone (b) When cyclobutanone is treated with D20 and NaOD, the only signal observable in the 1H-NMR is a singlet at 2.00 ppm. Explain why this is the case. [Note: Deuterium atoms do not display signals in the TH-NMR spectrum]arrow_forwardcan 1,2-dibromobenzene and 1,3-dibromobenzene distinguishe by H NMR spectroscopy? describe number of proton and splitting ?arrow_forward
- What would be the major product of this reaction? Discuss the 1H-NMR spectrum of the product and significant changes between the starting material and your product.arrow_forwardPlease explain why if the 13C & 1H NMR spectrum data below is the possible structure of known compound ' 1-(4'-methyl-[1,1'-biphenyl]-4-yl)ethanone'? (Suzuki Cross-Coupling) 1H NMR: 2.41 ppm, 3H, singlet, aromatic -CH3 2.64 ppm, 3H, singlet, ketone, -CH3 7.27-7.29 ppm, 2H,doublet, aromatic -CH 7.53-7.54 ppm, 2H,doublet, aromatic -CH 7.67-7.68 ppm, 2H,doublet, aromatic -CH 8.01-8.03 ppm, 2H,doublet, aromatic -CH 13C NMR 22 ppm, -CH3 attached to the aromatic ring 26 ppm, -CH3 attached to the ketone carbonyl 127 ppm, aromatic -CH 129 ppm, aromatic -CH 130.5 ppm, aromatic -CH 135 ppm, aromatic -CH 137 ppm, aromatic -CH 145 ppm, aromatic -CH 197 ppm, carbonyl carbon of ketone IR: A band at 3040 cm-1 is a stretching frequency of the C-H bond of the alkene. A band at 1672 cm-1 is a stretching frequency of the -C=O bond of ketone (alpha beta unsaturated ketone). A band at 1598 cm-1 is a stretching frequency of the C=C bond of the aromatic ring. A band at 1391 and 1362 cm-1 is a bending…arrow_forwardHow does the proton (1H) NMR of the methyl benzoate reagent compare to the methyl 3-nitrobenzoate product? Include (or illustrate) the NMR plots and peak assignments for each please type out so i can read clearlyarrow_forward
- Explain per step. Show the fragmentation pattern responsible for m/z values for 2-pentanone.arrow_forwardFollowing is a 1H-NMR spectrum of2-butanol, Explain why the CH2 protons appear as a complex multiplet rather than as a simple quintet.arrow_forwardSketch an H-NMR spectra of the final product, p-nitroacetanilide.arrow_forward
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