Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 18.47P
18-47 Methylparaben and propylparaben are used as preservatives in foods, beverages, and cosmetics.
Show how each of these preservatives can be prepared from 4-aminobenzoic acid.
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Introduction to General, Organic and Biochemistry
Ch. 18.2 - Prob. 18.1PCh. 18.5 - Prob. 18.2PCh. 18.5 - Prob. 18.3PCh. 18 - 18-4 Answer true or false. (a) The functional...Ch. 18 - Prob. 18.5PCh. 18 - 18-6 Name and draw structural formulas for the...Ch. 18 - 18-7 Write the IUPAC name for each carboxylic...Ch. 18 - 18-8 Write the IUPAC name for each carboxylic...Ch. 18 - Prob. 18.9PCh. 18 - Prob. 18.10P
Ch. 18 - Prob. 18.11PCh. 18 - Prob. 18.12PCh. 18 - Prob. 18.13PCh. 18 - 18-14 Answer true or false. (a) Carboxylic acids...Ch. 18 - 18-15 Draw a structural formula for the dimer...Ch. 18 - 18-16 Propanedioic (malonic) acid forms an...Ch. 18 - 18-17 Hexanoic (caproic) acid has a solubility in...Ch. 18 - 18-18 Propanoic acid and methyl acetate are...Ch. 18 - 18-19 The following compounds have approximately...Ch. 18 - Prob. 18.20PCh. 18 - Prob. 18.21PCh. 18 - Prob. 18.22PCh. 18 - 18-23 Characterize the structural features...Ch. 18 - Prob. 18.24PCh. 18 - Prob. 18.25PCh. 18 - 18-26 Answer true or false. (a) Carboxylic acids...Ch. 18 - Prob. 18.27PCh. 18 - 18-28 Arrange these compounds in order of...Ch. 18 - 18-29 Complete the equations for these acid—base...Ch. 18 - 18-30 Complete the equations for these acid-base...Ch. 18 - 18-31 Formic acid is one of the components...Ch. 18 - Prob. 18.32PCh. 18 - Prob. 18.33PCh. 18 - Prob. 18.34PCh. 18 - Prob. 18.35PCh. 18 - Prob. 18.36PCh. 18 - Prob. 18.37PCh. 18 - 18-38 Which is the stronger base: CH3CH2NH2 or...Ch. 18 - Prob. 18.39PCh. 18 - Prob. 18.40PCh. 18 - 18-41 Complete these examples of Fischer...Ch. 18 - Prob. 18.42PCh. 18 - Prob. 18.43PCh. 18 - Prob. 18.44PCh. 18 - Prob. 18.45PCh. 18 - 18-46 Procaine (its hydrochloride salt is marketed...Ch. 18 - 18-47 Methylparaben and propylparaben are used as...Ch. 18 - 18-48 4-Aminobenzoic acid is prepared from benzoic...Ch. 18 - Prob. 18.49PCh. 18 - Prob. 18.50PCh. 18 - Prob. 18.51PCh. 18 - Prob. 18.52PCh. 18 - Prob. 18.53PCh. 18 - Prob. 18.54PCh. 18 - Prob. 18.55P
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- 18-31 Formic acid is one of the components responsible for the sting of biting ants and is injected under the skin by bee and wasp stings. The pain can be relieved by rubbing the area of the sting with a paste of baking soda (NaHCO3) and water, which neutralizes the acid. Write an equation for this reaction.arrow_forward18-48 4-Aminobenzoic acid is prepared from benzoic acid by the following two steps. Show reagents and experimental conditions to bring about each step.arrow_forward18-29 Complete the equations for these acid—base reactions. (a) (b) (c) (d) (e)arrow_forward
- 8 (Chemical Connections 19C) Once it has been opened, and particularly if it has been left open to the air, a bottle of aspirin may develop a vinegar-like odor. Explain how this might happen.arrow_forward18-19 The following compounds have approximately the same molecular weight: hexanoic acid, heptanal, and 1-heptanol. Arrange them in order of increasing boiling point.arrow_forward16-13 Classify each amino group as primary, secondary, or tertiary and as aliphatic or aromatic. Serotonin (a neurotransmitter) Diphenhydramine (the hydrochloride salt is the antihistamine Benadryl) Lysine (an amino acid)arrow_forward
- 18-28 Arrange these compounds in order of increasing acidity: benzoic acid, benzyl alcohol, phenol.arrow_forward2 (Chemical Connections 19A) Locate the ester group in pyrethrin I and draw a structural formula for chrysanthemic acid, the carboxylic acid from which this ester is derived.arrow_forward7 What type of structural feature do the anhydrides of phosphoric acid have in common with carboxylic acids?arrow_forward
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