Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 11, Problem 20PP
Interpretation Introduction
Interpretation:
An explanation regarding the mechanism for the given observation is to be provided.
Concept introduction:
When a strong nucleophile, such as an alkoxide or a hydroxide ion, reacts with an
The reaction proceeds by
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An unknown compound has a molecular formula of C3H6O2. Its IR spectrum shows a very strong and broad band at 2980 and a strong sharp peak at 1716 cm-1. It exhibits the following signals in its 1H NMR spectrum (ppm): 1.21 (triplet, 3H), 2.48 (quartet, 2H), 11.7 (singlet, 1H); and the following signals in its 13C NMR spectrum (ppm): 8.9, 27.6, 181.5. Draw the structure of the unknown compound.
Describe the characteristic infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds.
(a) cyclohex-2-enone and cyclohex-3-enone
(b) cyclohexanol and cyclohexanone
12.6 (opq) Predict the major product and give the name of the reaction
Chapter 11 Solutions
Organic Chemistry
Ch. 11 - Prob. 1PPCh. 11 - Practice Problem 11.2 Give bond-line formulas and...Ch. 11 - Prob. 3PPCh. 11 - Prob. 4PPCh. 11 - Prob. 5PPCh. 11 - Prob. 6PPCh. 11 - Prob. 7PPCh. 11 - Practice Problem 11.8 Show how you would prepare...Ch. 11 - Prob. 9PPCh. 11 - Prob. 10PP
Ch. 11 - Practice Problem 11.11
An exception to what is...Ch. 11 - Prob. 12PPCh. 11 - Prob. 13PPCh. 11 - Prob. 14PPCh. 11 - Prob. 15PPCh. 11 - Prob. 16PPCh. 11 - Prob. 17PPCh. 11 - Prob. 18PPCh. 11 - Practice Problem 11.19
Propose structures for each...Ch. 11 - Prob. 20PPCh. 11 - Prob. 21PPCh. 11 - Prob. 22PPCh. 11 - Prob. 23PPCh. 11 - Prob. 24PPCh. 11 - Give an IUPAC substitutive name for each of the...Ch. 11 - Prob. 26PCh. 11 - Prob. 27PCh. 11 - Prob. 28PCh. 11 - Prob. 29PCh. 11 - 11.30. Show how you might prepare 2-bromobutane...Ch. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Considering A-L to represent the major products...Ch. 11 - Write structures for the products that would be...Ch. 11 - Prob. 36PCh. 11 - Provide the reagents necessary for the following...Ch. 11 - 11.38. Predict the major product from each of the...Ch. 11 - Predict the products from each of the following...Ch. 11 - Provide the reagents necessary to accomplish the...Ch. 11 - 11.41. Provide reagents that would accomplish the...Ch. 11 - Prob. 42PCh. 11 - 11.43. A synthesis of the -receptor blocker called...Ch. 11 - Prob. 44PCh. 11 - Prob. 45PCh. 11 - 11.46. For each of the following, write a...Ch. 11 - 11.47. Vicinal halo alcohols (halohydrins) can be...Ch. 11 - Prob. 48PCh. 11 - Prob. 49PCh. 11 - Prob. 50PCh. 11 - Prob. 51PCh. 11 - Prob. 52PCh. 11 - Outlined below is a synthesis of the gypsy moth...Ch. 11 - Prob. 54PCh. 11 - Prob. 55PCh. 11 - Prob. 56PCh. 11 - 11.57. When the 3-bromo-2-butanol with the...Ch. 11 - 11.58. Reaction of an alcohol with thionyl...Ch. 11 - Prob. 59PCh. 11 - Prob. 60PCh. 11 - Prob. 1LGPCh. 11 - Prob. 2LGPCh. 11 - Synthesize the compound shown below from...
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- (c) A tri-substituted benzene possessing one bromine and two methoxy substituents exhibit three aromatic resonances at 8 6.40, 6.46, and 7.41 ppm. Identify the substitution pattern.arrow_forwardDescribe the characteristic infrared absorption frequencies that would allow you to distinguish between the following pairs of compounds. (a) pentanal and pentan-2-one (b) butanamide and pentan-3-onearrow_forward8. (a) Benzene derivatives exhibit medium to strong absorption in UV-region. Explain why aniline and phenoxide ion have strong UV-absorptions.arrow_forward
- Explain the following observations :(i) The boiling point of ethanol is higher than that of methoxymethane.(ii) Phenol is more acidic than ethanol.(iii) o- and p-nitrophenols are more acidic than phenol.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_forwardPractice Problem 13.38e Propose a plausible mechanism for the following transformation. NaH CIarrow_forward
- Tell how UV-Vis spectrometry can be used to differentiate the following compounds. Calculate approximate Ymax values for each compound, when you can. (a) 1,4-hexadiene, 2,4-hexadiene, and 1,3-hexadiene (b) cyclohexanone, 2-cyclohexenone, and 2,4-cyclohexadienone (c) the following compounds 1 2 3arrow_forwardThymol (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_forwardCompound 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_forward
- Deduce the structures of compounds A and B, two of the major components of jasmine oil, from the given data. Compound A: C9H10O2; IR absorptions at 3091–2895 and 1743 cm-1; 1H NMR signals at 2.06 (singlet, 3 H), 5.08 (singlet, 2 H), and 7.33 (broad singlet, 5 H) ppm. Compound B: C14H12O2; IR absorptions at 3091–2953 and 1718 cm-1; 1H NMR signals at 5.35 (singlet, 2 H) and 7.26–8.15 (multiplets, 10 H) ppm.arrow_forward(14) Which of the following compounds would have the largest absorption in its UV-Vis spectrum? (a) (c) (b) (15) Draw the structure of anuarrow_forwardPRACTICE PROBLEM 8.20 Specify the alkene and reagents needed to synthesize each of the following diols. OH HO- (a) (b) (c) HO. н он HO (racemic) (racemic)arrow_forward
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