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Chapter 22: Q19. (page 894)

Question: What product is formed when acetic acid is treated with each reagent: (a)CH3NH2 ; (b) CH3NH2, then heat; (c) CH3NH2 + DCC?

Short Answer

Expert verified

Answer

a.

b.

c.

Step by step solution

01

Step-by-Step SolutionStep 1: Reaction of the carboxylic acid with amines

The carboxylic acids react with the amines to form the amides. These reactions are an example of nucleophilic acyl substitution reactions.

The reaction of carboxylic acids with the primary amines forms the secondary amides.

02

The reaction of acetic acid with the given reagents is as follows:

a. The reaction of the acetic acid with the primary amine

Product formation with reagent a.

b. The reaction of the acetic acid with the primary amine and then heat forms the secondary amide.

Product formation with reagent b.

c. The reaction of the acetic acid with the primary amine in the presence of DCC also forms the secondary amide.

Product formation with reagent c.

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Most popular questions from this chapter

Draw the product formed when the 伪,尾-unsaturated ketone A is treated with each reagent.

(a) NaBH4, CH3OH

(b) H2 (1 equiv), Pd-C

(c) H2 (excess), Pd-C

(d) [1] CH3Li ; [2]H2O

(e) [1] CH3CH2MgBr ; [2]H2O

(f) [1] (CH2=CH2)2; [2]H2O

Question: Which ester, C or D, is more reactive in nucleophilic acyl substitution? Explain your reasoning.

Oct-1-yne (HCCCH2CH2CH2CH2CH2CH3) reacts rapidly with NaH, forming a gas that bubbles out of the reaction mixture, as one product. Oct-1-yne also reacts rapidly with CH3MgBr , and a different gas is produced. Write balanced equations for both reactions and identify the gases formed.

Draw the products formed (including stereoisomers) when each compound is reduced with NaBH4in CH3OH.

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