Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 18, Problem 18.61P
Interpretation Introduction
Interpretation:
Starting with a diisocyanate and a diol, the way by which a polymer polyurethane can be formed has to be given.
Concept introduction:
Polyurethanes:
It is a family of
The formations of polyurethanes are done by the reaction between alcohols like
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The reaction of p-cresol with CH2=O resembles the reaction of phenol (PHOH) with CH2 = 0, except that the resulting polymer
is thermoplastic but not thermosetting. Draw the structure of the polymer formed, and explain why the properties of these two
polymers are so different.
CH3
OH
+ CH2=0
p-cresol
Give the reagents and intermediate products for the following two-step reaction.
We have studied Fischer esterification, in which a carboxylic acid is reacted with an
alcohol in the presence of an acid catalyst to form an ester. Suppose that you start
instead with a dicarboxylic acid such as terephthalic acid and a diol such as ethylene
glycol. Show how Fischer esterification in this case can lead to a macromolecule with a
molecular weight several thousand times that of the starting materials.
HO,
OH
poly(ethylene terephthalate)
(РET)
НО
HO,
1,4-Benzenedicarboxylic acid
(Terephthalic acid)
1,2-Ethanediol
(Ethylene glycol)
the material produced in this reaction is a high-
molecular-weight polymer, which can be fabricated into Mylar films and into the textile
fiber known as Dacron polyester.
Chapter 18 Solutions
Organic Chemistry
Ch. 18.1 - Prob. 18.1PCh. 18.2 - Prob. 18.2PCh. 18.4 - Prob. 18.3PCh. 18.4 - Prob. 18.4PCh. 18.4 - Synthesis of nitriles by nucleophilic displacement...Ch. 18.5 - Complete the following transesterification...Ch. 18.6 - Complete and balance equations for the following...Ch. 18.8 - Prob. AQCh. 18.8 - Several compounds have been found to inhibit...Ch. 18.8 - Prob. CQ
Ch. 18.8 - The following sequence of steps is used to create...Ch. 18.9 - Prob. 18.8PCh. 18.9 - Prob. 18.9PCh. 18.10 - Prob. 18.10PCh. 18.10 - Show how to convert (R)-2-phenylpropanoic acid to...Ch. 18 - Prob. 18.12PCh. 18 - Write the IUPAC name for each compound. (a)...Ch. 18 - Prob. 18.14PCh. 18 - Prob. 18.15PCh. 18 - Propose a structural formula for compound A,...Ch. 18 - Propose a structural formula for compound B,...Ch. 18 - Propose a structural formula for each compound...Ch. 18 - Draw a structural formula for the principal...Ch. 18 - Prob. 18.20PCh. 18 - Prob. 18.21PCh. 18 - Prob. 18.22PCh. 18 - Prob. 18.23PCh. 18 - Prob. 18.24PCh. 18 - Show the product expected when the following...Ch. 18 - The reagent diisobutylaluminum hydride (DIBALH)...Ch. 18 - Prob. 18.27PCh. 18 - Prob. 18.28PCh. 18 - Prob. 18.29PCh. 18 - Nicotinic acid, more commonly named niacin, is one...Ch. 18 - Prob. 18.31PCh. 18 - Prob. 18.32PCh. 18 - Prob. 18.33PCh. 18 - Prob. 18.34PCh. 18 - Prob. 18.35PCh. 18 - Isoniazid, a drug used to treat tuberculosis, is...Ch. 18 - Prob. 18.37PCh. 18 - A step in a synthesis of PGE1 (prostaglandin E1,...Ch. 18 - Prob. 18.39PCh. 18 - Prob. 18.40PCh. 18 - Show how to synthesize 5-nonanone from...Ch. 18 - Prob. 18.42PCh. 18 - The following sequence of steps converts...Ch. 18 - Prob. 18.44PCh. 18 - Prob. 18.45PCh. 18 - Prob. 18.46PCh. 18 - Prob. 18.47PCh. 18 - Following is a retrosynthetic analysis for the...Ch. 18 - Prob. 18.50PCh. 18 - Given this retrosynthetic analysis, propose a...Ch. 18 - Prob. 18.52PCh. 18 - Prob. 18.53PCh. 18 - Prob. 18.54PCh. 18 - In Problem 7.28, we saw this step in Johnsons...Ch. 18 - Prob. 18.56PCh. 18 - Prob. 18.57PCh. 18 - Prob. 18.58PCh. 18 - Prob. 18.59PCh. 18 - Prob. 18.60PCh. 18 - Prob. 18.61PCh. 18 - Prob. 18.62PCh. 18 - Using your reaction roadmap as a guide, show how...Ch. 18 - Using your reaction roadmap as a guide, show how...Ch. 18 - Using your reaction roadmap as a guide, show how...Ch. 18 - Using your reaction roadmap as a guide, show how...Ch. 18 - Minoxidil is a molecule that causes hair growth in...Ch. 18 - Prob. 18.69PCh. 18 - Prob. 18.70PCh. 18 - Prob. 18.71P
Knowledge Booster
Similar questions
- A postgraduate student wanted to synthesized two carbonyl compounds known as compounds M and N using oxidation of alcohol. However, these carbonyl compounds should have more than 6 carbon atoms. Draw two (2) possible structural formulae for compounds M and N. How would you distinguish between compounds M and N?arrow_forwardIn the final product, triphenylmethyl ethyl ether, there is only one oxygen atom. From which of the two starting materials did it come?arrow_forwardProvide the reagents for the reactions.arrow_forward
- SN2 reaction is an example of a nucleophilic substitution reaction. Imagine that 1-iodobutane reacts with 4-methylheptan-1-ol under basic conditions. Draw the structure of the two reactants.arrow_forwardBoth monomers needed for the synthesis of Nylon 6,6 can be prepared from 1,4- dichlorobutane. How would you prepare the two monomers from 1,4-dichlobutane? Don't forget to show the product from each step of the synthesis. ????? ????? H₂N HO NH₂ eyou OHarrow_forwardWhat explains why many aldehydes and ketones can undergo self-condensation reactions in basic conditions? The alpha carbon can lose a proton and act like a nucleophile and the carbonyl carbon is an electrophile. The alpha carbon can gain a proton and act like an electrophile and the carbonyl carbon is a nucleophile. The oxygen of the carbonyl group can attack the carbon of the carbonyl group. Only esters can undergo self-condensation reactions.arrow_forward
- Alkyl sulfonates undergo the same type of substitution reactions as alkyl halides and can also be prepared from alcohols. What advantage does the preparation of an alkyl sulfonate from an alcohol have over the preparation of an alkyl halide from an alcohol?arrow_forwardH NH₂ ཡིནྣཾ ༥ ཨ ཨནྡྷ༥ ༠ ཨི་ཝཱ, ཙ ཨ་ར༩ H NH3+ the acidity of the amine ion drives the reaction to shift toward the conjugate base of the carboxylic acid product. the resulting carboxylic acid ion is a weaker base than an acetate ion. O aldehydes are more reactive toward nucleophiles than ketones. Onucleophilic attack occurs preferentially at the less hindered carbon of the formyl group.arrow_forwardBenzene can be hydroxylated by treating it with hydrogen peroxide and a strong acid such as trifluoromethanesulfonic acid (TfOH). Propose amechanism for this reactionarrow_forward
- Both monomers needed for the synthesis of Nylon 6,6 can be prepared from 1,4- dichlorobutane. How would you prepare the two monomers from 1,4-dichlobutane? Don't forget to show the product from each step of the synthesis. C1 ????? ????? H₂N HO NH₂ OHarrow_forwardCan salicylic acid undergo an SN1 reaction?arrow_forwardA compound with formula C7H12O is treated with sodium borohydride in methanol to yield 2,2-dimethylcylopentanol. Write a reaction scheme showing the structures of the reactant, the reagents, and the product. Will the product be optically active? Explain.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning