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Exam 21: Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution Reactions

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Exhibit 21-9 Refer to the data below to answer the following question(s): Kodel is a staple and filament fiber prepared from dimethyl terephthalate and 1,4-cyclohexanedimethanol.Fabric made from Kodel has good crease resistance. -Refer to Exhibit 21-9.Draw the structure of the Kodel polymer.

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trans-2-bu...

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Draw: methyl cis-3-ethylcyclobutanecarboxylate

Consider the following molecular model.Atoms other than carbon and hydrogen are labeled. Which of the following reactants could be used to produce this compound?

Which line in the following spectrum would indicate the presence of a carbonyl group?

Draw: (E)-2,4-dimethyl-2-hexenoyl chloride

Poly(ethylene terephthalate),PET,is the polymeric material of Mylar and Dacron .What are the monomers from which PET is prepared?

Exhibit 21-4 Consider the information below to answer the following question(s) . The reaction of a carboxylic acid with an alcohol in the presence of acid is termed Fischer esterification. -Refer to Exhibit 21-4.Fischer esterification is an example of:

Which of the following describes nucleophilic acyl substitution?

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Exhibit 21-4 Consider the information below to answer the following question(s). The reaction of a carboxylic acid with an alcohol in the presence of acid is termed Fischer esterification. -Refer to Exhibit 21-4.Write the stepwise mechanism for the Fischer esterification reaction of benzoic acid and methanol given above.Show all electron flow by using curved arrows,and include all intermediate structures.

Draw: acetic formic anhydride

The following is an excerpt from a spectrum taken on an unknown sample. To which of the following functional groups might the unknown belong?

Draw: 3,4,5-trimethoxybenzoyl chloride

Name the following substance.Atoms other than carbon and hydrogen are labeled.

Exhibit 21-4 Consider the information below to answer the following question(s). The reaction of a carboxylic acid with an alcohol in the presence of acid is termed Fischer esterification. -Refer to Exhibit 21-4.The nucleophile in this reaction is _____.

What is the correct structure for phenylbenzoate?

Draw: N,N-dimethylformamide

Methyl butanoate has been isolated from pineapple oil and can be prepared by the Fischer esterification reaction shown below.Write the complete stepwise mechanism for this reaction.Show all electron flow with arrows and include all intermediate structures.

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