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Chapter 21: Q61 E (page 726)

21-61 Qiana, a polyamide fiber with a silky texture, has the following structure. What are the monomer units used in the synthesis of Qiana?

Short Answer

Expert verified

For the production of Qiana, the monomer unit is:

Step by step solution

01

Introduction to the Concept

Chemical synthesis is the technique of transforming a reactant or beginning material right into a product or many products through appearing one or extra chemical reactions.

02

Solution Explanation

Qianais a polymerization that occurs as a result of condensation. It is caused by the dehydration of the aforementioned monomers as follows:


The monomer units are linked by c nucleophiles acyl substitution during condensation by dehydration.

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Most popular questions from this chapter

Propose structures for compounds that have the following formulas and IR absorptions:

(a) C6H12O2, 1735 cm-1

(b) C4H9NO, 1650 cm-1

(c) C4H5ClO, 1780 cm-1

Given IUPAC names for the following substances:

21-35 Pivalic mixed anhydrides are often used to form amide bonds betweenamino acids. Unlike with a symmetrical anhydride, this reaction is highly regioselective, with the nucleophile adding only to the amino-acid carbonyl. Provide the complete mechanism for the reaction below and explain the regioselectivity.

21-46 Draw structures corresponding to the following names

  1. p-Bromophenylacetamide
  2. m-Benzoylbenzamide
  3. 2,2-Dimethylhexanamide
  4. Cyclohexyl cyclohexanecarboxylate
  5. Ethyl 2-cyclobutenecarboxylate
  6. Succinic anhydride

Treatment of 5- aminopentanoic acid DCC(dicyclohexylcarbodiimide) yields a lactam. Show the structure of the product and the mechanism of the reaction.
See all solutions

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