ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT
12th Edition
ISBN: 9781119664635
Author: Solomons
Publisher: WILEY
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Chapter SRP, Problem 19P
Give structures for compounds A–D. Compound D gives a strong IR absorption band near
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Treatment of benzoic acid (C6H5CO2H) with NaOH followed by 1-iodo-3methylbutane forms H. H has a molecular ion at 192 and IR absorptions at 3064, 3035, 2960−2872, and 1721 cm−1. Propose a structure for H.
Compounds B and C are isomers with molecular formula C5H9BrO2. The 1H NMR spectrum of compounds B and C are shown below. The IR spectrum corresponding to compound B showed strong absorption bands at 1739, 1225, and 1158 cm-1, while the spectrum corresponding to compound C have strong bands at 1735, 1237, and 1182 cm-1.
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Chapter SRP Solutions
ORGANIC CHEMISTRY (LL) W/WILEYPLUS NEXT
Ch. SRP - 1. Arrange the compounds of each of the following...Ch. SRP - 2. Arrange the compounds of each of the following...Ch. SRP - Predict the final product from each of the...Ch. SRP - Prob. 4PCh. SRP - Write detailed mechanisms for each of the...Ch. SRP - Prob. 6PCh. SRP - Prob. 7PCh. SRP - Prob. 8PCh. SRP - Prob. 9PCh. SRP - Give stereochemical structures for compounds AD:
Ch. SRP - Prob. 11PCh. SRP - The remaining steps in the industrial synthesis of...Ch. SRP - Prob. 13PCh. SRP - Prob. 14PCh. SRP - Prob. 15PCh. SRP - Prob. 16PCh. SRP - 17. Show how you would modify the synthesis given...Ch. SRP - Prob. 18PCh. SRP - Give structures for compounds AD. Compound D gives...Ch. SRP - The tranquilizing drug meprobamate (Equanil or...Ch. SRP - Prob. 21PCh. SRP - 22. Outlined here is the synthesis of a central...Ch. SRP - 23. What are compounds A and B? Compound B has a...Ch. SRP - Prob. 24PCh. SRP - 25. The Dow process for synthesizing phenol, which...Ch. SRP - Prob. 26PCh. SRP - Prob. 27PCh. SRP - 28. Compound Y shows prominent IR absorption...Ch. SRP - Prob. 29PCh. SRP - Consider this reaction involving peracetic acid:...Ch. SRP - 31. A compound (N) with the molecular formula...Ch. SRP - 32. Compound X is insoluble in aqueous sodium...Ch. SRP - Write the structures of the three products...Ch. SRP - Compound C (C9H11NO) gives a positive Tollens test...Ch. SRP - A compound X (C10H14O) dissolves in aqueous sodium...Ch. SRP - Compound Z (C5H10O) decolorizes bromine. The IR...Ch. SRP - 37. Compound W was isolated from a marine annelid...Ch. SRP - 38. Phenols generally are not changed on treatment...
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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_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_forwardCompound 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.arrow_forward
- (a) The Friedel-Crafts reaction of benzene with 2-chloro-3-methylbutane in the presence of AlCl3 occurs with a carbocation rearrangement. Give mechanistic explanation and the product formed. (b) Predict the product(s) will be formed from the following reactions: (i) Bromination of p-methylbenzoic acid (ii) Sulphonation of m-bromoanisole (iii) Friedel-craft acylation of o-bromonitrobenzenearrow_forward1,3,5,7-Cyclooctatetraene, C8H8, is an unusual hydrocarbon in that it reacts with exactly 2 equivalents of potassium to give A, C8H8K2, which can be isolated as a white solid. A exhibits a single proton NMR signal. Draw the structure of A.arrow_forwardCompound 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_forward
- Addition of mesitylene to the strongly acidic solvent HF / SbF5 at -45 °C gives a new species which shows a 1H-NMR resonance at δ 4.67 (2H). Draw the structure of this species.arrow_forwardReaction of tert-butyl pentyl ether [CH3CH2CH2CH2CH2OC(CH3)3] with HBr forms 1-bromopentane (CH3CH2CH2CH2CH2Br) and compound B. B has a molecular ion in its mass spectrum at 56 and gives peaks in its IR spectrum at 3150−3000, 3000−2850, and 1650 cm−1. Propose a structure for B, and draw a stepwise mechanism that accounts for its formation.arrow_forwardA compound of formula C6H10O2 shows only two absorptions in the proton NMR: a singlet at 2.67 ppm and a singlet at2.15 ppm. These absorptions have areas in the ratio 2:3. The IR spectrum shows a strong absorption at 1708 cm-1. Proposea structure for this compound.arrow_forward
- Furan undergoes electrophilic aromatic substitution more readily than benzene; mild reagents and conditions are sufficient.For example, furan reacts with bromine to give 2-bromofuran.(a) Propose mechanisms for the bromination of furan at the 2-position and at the 3-position. Draw the resonance forms ofeach sigma complex, and compare their stabilities.(b) Explain why furan undergoes bromination (and other electrophilic aromatic substitutions) primarily at the 2-position.O Br O123furan 2-bromofuranarrow_forwardTreatment of benzaldehyde (C6H5CHO) with Zn(Hg) in aqueous HCl forms a compound Z that has a molecular ion at 92 in its mass spectrum. Z shows absorptions at 3150–2950, 1605, and 1496 cm-1 in its IR spectrum. Give a possible structure for Z.arrow_forwardWhen 2-bromo-3,3-dimethylbutane is treated with K+ −OC(CH3)3, a single product T having molecular formula C6H12 is formed. When 3,3dimethylbutan-2-ol is treated with H2SO4, the major product U has the same molecular formula. Given the following 1H NMR data, what are the structures of T and U? Explain in detail the splitting patterns observed for the three split signals in T. 1H NMR of T: 1.01 (singlet, 9 H), 4.82 (doublet of doublets, 1 H, J = 10, 1.7 Hz), 4.93 (doublet of doublets, 1 H, J = 18, 1.7 Hz), and 5.83 (doublet of doublets, 1 H, J = 18, 10 Hz) ppm 1H NMR of U: 1.60 (singlet) ppmarrow_forward
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