PKG ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259963667
Author: SMITH
Publisher: MCG
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Chapter 22, Problem 22.77P
Interpretation Introduction
Interpretation: The structure of phenacetin is to be predicted from the given
Concept introduction: The method of spectroscopy is used to identify the structure of the molecule. It is based on the interactions between matter and
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Phenacetin is an analgesic compound having molecular formula C10H13NO2. Once a common component in over-thecounter pain relievers such as APC (aspirin, phenacetin, caffeine), phenacetin is no longer used because of its liver toxicity. Deduce the structure of phenacetin from its 1H NMR and IR spectra.
Compound X (molecular formula C10H12O) was treated with NH2NH2,−OH to yield compound Y (molecular formula C10H14). Based on the 1H NMR spectra of X and Y given below, what are the structures of X and Y?
Annotate the H-NMR spectra of Benzophenone
Chapter 22 Solutions
PKG ORGANIC CHEMISTRY
Ch. 22 - Prob. 22.1PCh. 22 - Draw the three possible resonance structures for...Ch. 22 - Prob. 22.3PCh. 22 - Give an IUPAC or common name for each compound. a....Ch. 22 - Problem 22.5 Draw the structure corresponding to...Ch. 22 - Problem 22.6 Explain why the boiling point of is...Ch. 22 - Problem 22.7 How would the compounds in each pair...Ch. 22 - Problem 22.8 Deduce the structures of compounds ...Ch. 22 - Problem 22.9 Without reading ahead in Chapter 22,...Ch. 22 - Rank the compounds in each group in order of...
Ch. 22 - Prob. 22.11PCh. 22 - Prob. 22.12PCh. 22 - Prob. 22.13PCh. 22 - Prob. 22.14PCh. 22 - Problem 22.15 Draw the products of each...Ch. 22 - Problem 22.16 Draw the products of each reaction.
...Ch. 22 - Prob. 22.17PCh. 22 - Problem 22.18 Draw a stepwise mechanism for the...Ch. 22 - Prob. 22.19PCh. 22 - Problem 22.20 Fenofibrate is a...Ch. 22 - Problem 22.21 What product is formed when the...Ch. 22 - How would you synthesize olestra from sucrose?
Ch. 22 - Problem 22.23 What is the composition of the soap...Ch. 22 - Problem 22.24 Draw a stepwise mechanism for the...Ch. 22 - Prob. 22.25PCh. 22 - Problem 22.26 Some penicillins cannot be...Ch. 22 - Prob. 22.27PCh. 22 - Prob. 22.28PCh. 22 - Prob. 22.29PCh. 22 - Problem 22.30 Glucosamine is a dietry supplement...Ch. 22 - Draw the products of each reaction. a. c. b.Ch. 22 - Draw a tautomer of each compound.
a. b. c.
Ch. 22 - Draw the product of each reaction. a. b.Ch. 22 - Draw the product of each reaction. a. b.Ch. 22 - Prob. 22.35PCh. 22 - Problem 22.36 Outline two different ways that can...Ch. 22 - 22.37 Rank the following compounds in order of...Ch. 22 - Prob. 22.38PCh. 22 - Prob. 22.39PCh. 22 - 22.40 Give the IUPAC or common name for each...Ch. 22 - 22.41 Give the structure corresponding to each...Ch. 22 - Prob. 22.42PCh. 22 - 22.43 Explain why is a stronger acid and a weaker...Ch. 22 - (a) Propose an explanation for the difference in...Ch. 22 - Draw the product formed when phenylacetic acid is...Ch. 22 - Draw the product formed when phenylacetonitrile ...Ch. 22 - 22.47 Draw the organic products formed in each...Ch. 22 - Prob. 22.48PCh. 22 - Prob. 22.49PCh. 22 - Prob. 22.50PCh. 22 - Prob. 22.51PCh. 22 - Prob. 22.52PCh. 22 - Prob. 22.53PCh. 22 - 22.54 Draw a stepwise mechanism f or the following...Ch. 22 - 22.55 When acetic acid () is treated with a trace...Ch. 22 - Prob. 22.56PCh. 22 - Prob. 22.57PCh. 22 - Draw a stepwise mechanism for the following...Ch. 22 - Prob. 22.59PCh. 22 - Prob. 22.60PCh. 22 - Prob. 22.61PCh. 22 - Draw a stepwise mechanism for the following...Ch. 22 - 22.63 Acid-catalyzed hydrolysis of forms compound...Ch. 22 - 22.64 What carboxylic acid and alcohol are needed...Ch. 22 - Problem 22.65 Devise a synthesis of each compound...Ch. 22 - Prob. 22.66PCh. 22 - Prob. 22.67PCh. 22 - Prob. 22.68PCh. 22 - Prob. 22.69PCh. 22 - 22.70 What polyester or poly amide can be prepared...Ch. 22 - 22.71 What two monomers are needed to prepare each...Ch. 22 - Prob. 22.72PCh. 22 - 22.73 How can IR spectroscopy be used to...Ch. 22 - 22.74 Rank the following compounds in order of...Ch. 22 - 22.75 Identify the structures of each compound...Ch. 22 - 22.76 Identify the structures of A and B, isomers...Ch. 22 - Prob. 22.77PCh. 22 - 22.78 Identify the structure of compound C...Ch. 22 - 22.79 Identify the structures of D and E, isomers...Ch. 22 - 22.80 With reference to amides A and B, the...Ch. 22 - Prob. 22.81PCh. 22 - Prob. 22.82PCh. 22 - Prob. 22.83PCh. 22 - Draw a stepwise mechanism for the following...Ch. 22 - Draw a stepwise mechanism for the following...
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- Compound H (C8H6O3) gives a precipitate when treated with hydroxylamine in aqueous ethanol and a silver mirror when treated with Tollens solution. Following is its 1H-NMR spectrum. Deduce the structure of compound H.arrow_forwardFollowing are structural formulas for amphetamine and methamphetamine. H NH, CH3 (a) (b) Amphetamine (racemic) Methamphetamine (racemic) The major central nervous system effects of amphetamine and amphetamine-like drugs are locomotor stimulation, euphoria and excitement, stereotyped behavior, and anorexia. Show how each drug can be synthesized by reductive amination of an ap- propriate aldehyde or ketone and amine.arrow_forwardWhat carboxylic acid and amine are needed to synthesize the pain reliever phenacetin? Phenacetin was once a component of the over-the-counter pain reliever APC (aspirin, phenacetin, caffeine), but it is no longer used because of its kidney toxicity.arrow_forward
- In the 1880's, Acetanilide, sold under the name Antifebrin, was widely used as a pain reliever and fever reducer. However, it had many adverse side effects, including cyanosis as a result of methemoglobinemia. The toxic side effects were the result of a small portion of acetanilide being hydrolyzed to aniline. Acetanilide was discontinued and replaced with phenacetin. Later studies show that both acetanilide and phenacetin are metabolized to acetaminophen. This metabolite, which we know as Tylenol, is responsible for the analgesic and antipyretic properties. Part 1: Show a detailed arrow pushing mechanism of the acid catalyzed hydrolysis of acetanilide to aniline Part 2: Propose a synthesis of Acetaminophen from phenol NH NH NH Phenacetin inophen Acetanilide Attach File Browse Local Files Browse Content Collectionarrow_forwardAnnotate the H-NMR of Triphenylmathanolarrow_forwardy-Butyrolactone (C4H6O2, GBL) is a biologically inactive compound that is converted to the biologically active recreational drug GHB (Section 19.5) by a lactonase enzyme in the body. Since y-butyrolactone is more fat soluble than GHB, it is more readily absorbed by tissues and thus produces a faster onset of physiological symptoms. y-Butyrolactone shows an absorption in its IR spectrum at 1770 cm-1 and the following 1H NMR spectral data: 2.28 (multiplet, 2 H), 2.48 (triplet, 2 H), and 4.35 (triplet, 2 H) ppm. What is the structure of y-butyrolactone?arrow_forward
- Compound X (molecular formula C10H12O) was treated with NH2NH2, -OH to yield compound Y (molecular formula C10H14). Based on the 1H NMR spectra of X and Y given below, what are the structures of X and Y?arrow_forwardEach hydrogen of a primary amide typically has a separate 1H-NMR resonance, as illustrated by the separate signals for the two amide hydrogens of propanamide, which fall at δ 6.22 and δ 6.58. Furthermore, each methyl group of N,N-dimethylformamide has a separate resonance (δ 3.88 and δ 3.98). How do you account for these observations?arrow_forwardThe analgesic acetaminophen is synthesized by treating 4-aminophenol with one equivalent of acetic anhydride. Draw a structural formula for acetaminophen.arrow_forward
- The name of following amine H3C-CH3 compound is N-methylbenzeneamine, and it is a tertiary aliphatic N,N-Dimethylaniline, and it is a tertiary aliphatic N,N-Dimethylaniline, and it is a tertiary aromatic N-methyl-N-methylaniline, and it is a tertiary aliphatic N-methyl-N-methylaniline, and it is a tertiary aromaticarrow_forwardWhy is methyl salicylate so easily absorbed through the skin?arrow_forwardA mixture of the compounds shown below is dissolved in cyclohexane. An aqueous solution of NaOH is added to the solution, and two layers are formed. Which compound(s) is(are) found in the aqueous layer? он HO Benzoic acid Beta-naphthol Naphthalene O Benzoic acid only O Beta-naphthol only O Naphthalene O Both Benzoic acid and beta-naphthol O Both beta-naphthol and naphthalenearrow_forward
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