Organic Chemistry-Package(Custom)
Organic Chemistry-Package(Custom)
4th Edition
ISBN: 9781259141089
Author: SMITH
Publisher: MCG
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Chapter 22, Problem 22.29P
Interpretation Introduction

Interpretation: The structure of PLA, obtained from the lactic acid monomer is to be drawn.

Concept introduction: The full name of PLA is poly(lactic acid). It is obtained from renewable sources. It is polyester. Polyesters are the class of polymers which contains ester as the main functional group.

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Poly(lactic acid) (PLA) has received much recent attention because the lactic acid monomer [CH3CH(OH)COOH] from which it is made can be obtained from carbohydrates rather than petroleum. This makes PLA a more “environmentally friendly” polyester. (A more in-depth discussion of green polymer synthesis is presented in Chapter 30.) Draw the structure of PLA.
Poly(lactic acid) (PLA) has received much recent attention because the lactic acid monomer [CH3CH(OH)COOH] from which it is made can be obtained from carbohydrates rather than petroleum. This makes PLA a more “environmentally friendly” polyester. (A further discussion of green polymer synthesis is presented in Chapter 28.) Draw the structure of PLA.

Chapter 22 Solutions

Organic Chemistry-Package(Custom)

Ch. 22 - Prob. 22.1PCh. 22 - Draw the three possible resonance structures for...Ch. 22 - Prob. 22.3PCh. 22 - Give an IUPAC or common name for each compound.Ch. 22 - Problem 22.5 Draw the structure corresponding to...Ch. 22 - Prob. 22.6PCh. 22 - How would the compounds in each pair differ in...Ch. 22 - Problem 22.8 Deduce the structures of compounds ...Ch. 22 - Prob. 22.9PCh. 22 - Rank the compounds in each group in order of...
Ch. 22 - Prob. 22.11PCh. 22 - Prob. 22.12PCh. 22 - Prob. 22.13PCh. 22 - Prob. 22.14PCh. 22 - Problem 22.15 Draw the products of each...Ch. 22 - Problem 22.16 Draw the products of each reaction. ...Ch. 22 - Prob. 22.17PCh. 22 - Problem 22.18 Draw a stepwise mechanism for the...Ch. 22 - Prob. 22.19PCh. 22 - Problem 22.20 Fenofibrate is a...Ch. 22 - Problem 22.21 What product is formed when the...Ch. 22 - How would you synthesize olestra from sucrose? Ch. 22 - What is the composition of the soap prepared by...Ch. 22 - Problem 22.24 Draw a stepwise mechanism for the...Ch. 22 - Prob. 22.25PCh. 22 - Problem 22.26 Some penicillins cannot be...Ch. 22 - Prob. 22.27PCh. 22 - Prob. 22.28PCh. 22 - Prob. 22.29PCh. 22 - Problem 22.30 Glucosamine is a dietry supplement...Ch. 22 - Draw the products of each reaction. a. c. b.Ch. 22 - Draw a tautomer of each compound.Ch. 22 - Draw the product of each reaction. a.b.Ch. 22 - Draw the product of each reaction. a. b.Ch. 22 - Prob. 22.35PCh. 22 - Problem 22.36 Outline two different ways that can...Ch. 22 - 22.37 Rank the following compounds in order of...Ch. 22 - Prob. 22.38PCh. 22 - Prob. 22.39PCh. 22 - Prob. 22.40PCh. 22 - Give thestructure corresponding to each name. a....Ch. 22 - Prob. 22.42PCh. 22 - Prob. 22.43PCh. 22 - 22.43 Explain why is a stronger acid and a weaker...Ch. 22 - Draw the product formed when pentanoyl chloride...Ch. 22 - Draw the product formed when pentanoic anhydride...Ch. 22 - Draw the product formed when phenylacetic acid is...Ch. 22 - Prob. 22.48PCh. 22 - Prob. 22.49PCh. 22 - Draw the product formed when phenylacetonitrile ...Ch. 22 - Prob. 22.51PCh. 22 - Prob. 22.52PCh. 22 - Prob. 22.53PCh. 22 - Prob. 22.54PCh. 22 - Prob. 22.55PCh. 22 - Prob. 22.56PCh. 22 - Draw a stepwise mechanism for each reaction. a. b.Ch. 22 - When acetic acid CH3COOH is treated with a trace...Ch. 22 - Prob. 22.59PCh. 22 - Prob. 22.60PCh. 22 - Prob. 22.61PCh. 22 - Prob. 22.62PCh. 22 - Prob. 22.63PCh. 22 - Draw a stepwise mechanism for the following...Ch. 22 - 22.63 Acid-catalyzed hydrolysis of forms compound...Ch. 22 - Prob. 22.66PCh. 22 - Devise a synthesis of each compound using...Ch. 22 - Convert 1-bromohexane (CH3CH2CH2CH2CH2CH2Br) into...Ch. 22 - Prob. 22.69PCh. 22 - Prob. 22.70PCh. 22 - Prob. 22.71PCh. 22 - Prob. 22.72PCh. 22 - Prob. 22.73PCh. 22 - Prob. 22.74PCh. 22 - Devise a synthesis of each labeled compound using...Ch. 22 - 22.70 What polyester or poly amide can be prepared...Ch. 22 - 22.71 What two monomers are needed to prepare each...Ch. 22 - Prob. 22.78PCh. 22 - How can IR spectroscopy be used to distinguish...Ch. 22 - Rank the compounds in each group in order of...Ch. 22 - 22.75 Identify the structures of each compound...Ch. 22 - 22.76 Identify the structures of A and B, isomers...Ch. 22 - Prob. 22.83PCh. 22 - 22.78 Identify the structure of compound C...Ch. 22 - 22.79 Identify the structures of D and E, isomers...Ch. 22 - 22.80 With reference to amides A and B, the...Ch. 22 - Prob. 22.87PCh. 22 - Prob. 22.88PCh. 22 - Prob. 22.89PCh. 22 - Draw a stepwise mechanism for the following...Ch. 22 - Draw a stepwise mechanism for the following...
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