Concept explainers
(a)
Interpretation:
The structural formula of 2-aminopropanoic acid should be drawn.
Concept Introduction:
One of the hydrogen of propanoic acid at carbon 2 position is replaced by amino group.
(b)
Interpretation:
The structural formula of 3, 5-dinitrobenzoic acid should be drawn.
Concept Introduction:
Two nitro groups are at position 3 and 5 with respect to benzoic acid which is at carbon 1.
(c)
Interpretation:
The structural formula of dichloroacetic acid should be drawn.
Concept Introduction:
Two of the hydrogens of acetic acid are replaced by two chloro groups.
(d)
Interpretation:
The structural formula of o-aminobenzoic acid should be drawn.
Concept Introduction:
Ortho (o) position is the C-2 and C-6 position with respect to the major
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Introduction to General, Organic and Biochemistry
- 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.arrow_forward18-31 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_forward18-29 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_forward18-48 4-Aminobenzoic acid is prepared from benzoic acid by the following two steps. Show reagents and experimental conditions to bring about each step.arrow_forward18-19 The following compounds have approximately the same molecular weight: hexanoic acid, heptanal, and 1-heptanol. Arrange them in order of increasing boiling point.arrow_forward
- 8 In Chapter 22, we will discuss a class of compounds called amino acids, so named because they contain both an amino group and a carboxyl group. Following is a structural formula for the amino acid alanine. What would you expect to be the major form of alanine present in aqueous solution (a) at pH 2.0, (b) at pH 5—6, and (c) at pH 11.0? Explain.arrow_forward18-15 Draw a structural formula for the dimer formed when two molecules of formic acid interact by hydrogen bonding.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_forward
- Draw the molecules involved in the synthesis of aspirin. Is the forward reaction hydrolysis or condensation? Is the reverse reaction hydrolysis or condensation? Describe what occurs un each type of reaction with respect to acetylsalicylic acid.arrow_forwardarrange the following compound types in order of decreasing ease of hydrolysis: acid halides, acid anhydrides, esters, and amides. Use > in your arrangement.arrow_forwardb) Compounds in which the –OH of the carboxyl group is replaced by certain other groups are called carboxylic acid derivatives. The most important of which are acyl halides, acid anhydrides, esters and amides. Discuss the relationship between carboxylic acid, acid chloride and acid anhydridearrow_forward
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