Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 16.8, Problem 32P
(a)
Interpretation Introduction
Interpretation:
The mechanisms for the following reactions should be determined.
- 1. The acid-base catalyzed hydrolysis of an imine to a carbonyl compound and a primary
amine . - 2. The acid-base catalyzed hydrolysis of an enamine to a carbonyl compounds and a secondary amine.
Concept introduction:
The chemical compound containing carbon and nitrogen double bond is known as imine.
Enamine is derived by the condensation of an
(b)
Interpretation Introduction
Interpretation:
The reason for the difference in mechanism of two reactions should be given.
Concept introduction:
The chemical compound containing carbon and nitrogen double bond is known as imine.
Enamine is derived by the condensation of an aldehyde and ketone with secondary amine.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
a. Write the mechanism for the following reactions:1. the acid-catalyzed hydrolysis of an imine to a carbonyl compound and a primary amine2. the acid-catalyzed hydrolysis of an enamine to a carbonyl compound and a secondary amine
b. How do the two mechanisms differ?
Write the mechanism for the following reactions:
1. the acid-catalyzed hydrolysis of an imine to a carbonyl compound and a primary amine
2. the acid-catalyzed hydrolysis of an enamine to a carbonyl compound and a secondary amine a. How do the two mechanisms differ?
The reaction of a nitrile with an alcohol in the presence of a strong acid forms an N-substituted amide. This reaction, known as the Ritter reaction, doesnot work with primary alcohols.
a. Why does the Ritter reaction not work with primary alcohols?
b. Provide an explanation for why an amide is less susceptible to nucleophilic attack than its corresponding ester.
Chapter 16 Solutions
Organic Chemistry (8th Edition)
Ch. 16.1 - Give two names for each of the following:Ch. 16.1 - Prob. 2PCh. 16.1 - Name the following:Ch. 16.2 - Prob. 4PCh. 16.4 - What products are formed when the following...Ch. 16.4 - We saw on the previous page that...Ch. 16.4 - a. How many stereoisomers are obtained from the...Ch. 16.4 - Prob. 9PCh. 16.4 - Write the mechanism for the reaction of acetyl...Ch. 16.4 - Prob. 11P
Ch. 16.4 - Show how the following compounds can be...Ch. 16.4 - Prob. 13PCh. 16.4 - Prob. 14PCh. 16.4 - In the mechanism for cyanohydrin formation, why is...Ch. 16.4 - Prob. 16PCh. 16.4 - Prob. 17PCh. 16.4 - Show two ways to convert an alkyl halide into a...Ch. 16.5 - Prob. 20PCh. 16.5 - Prob. 21PCh. 16.5 - Prob. 22PCh. 16.5 - Prob. 23PCh. 16.6 - Prob. 24PCh. 16.7 - What reducing agents should be used to obtain the...Ch. 16.7 - Prob. 26PCh. 16.8 - Prob. 27PCh. 16.8 - Prob. 28PCh. 16.8 - Prob. 29PCh. 16.8 - The pKa of protonated acetone is about 7.5. and...Ch. 16.8 - Prob. 31PCh. 16.8 - Prob. 32PCh. 16.8 - Prob. 33PCh. 16.8 - Excess ammonia must be used when a primary amine...Ch. 16.8 - The compounds commonly known as amino acids are...Ch. 16.9 - Hydration of an aldehyde is also catalyzed by...Ch. 16.9 - Which ketone forms the most hydrate in an aqueous...Ch. 16.9 - When trichloroacetaldehyde is dissolved in water,...Ch. 16.9 - Which of the following are a. hermiacetals? b....Ch. 16.9 - Prob. 40PCh. 16.9 - Explain why an acetal can be isolated but most...Ch. 16.10 - Prob. 42PCh. 16.10 - Prob. 43PCh. 16.10 - What products would be formed from the proceedings...Ch. 16.10 - a. In a six-step synthesis, what is the yield of...Ch. 16.10 - Show how each of the following compounds could be...Ch. 16.12 - Prob. 47PCh. 16.13 - Prob. 49PCh. 16.14 - Prob. 50PCh. 16.15 - Prob. 51PCh. 16.16 - Prob. 52PCh. 16 - Draw the structure for each of the following: a....Ch. 16 - Prob. 54PCh. 16 - Prob. 55PCh. 16 - Prob. 56PCh. 16 - a. Show the reagents required to form the primary...Ch. 16 - Prob. 58PCh. 16 - Prob. 59PCh. 16 - Using cyclohexanone as the starting material,...Ch. 16 - Propose a mechanism for each of the following...Ch. 16 - Show how each of the following compounds can be...Ch. 16 - Fill in the boxes:Ch. 16 - Prob. 64PCh. 16 - Identify A through O:Ch. 16 - Prob. 66PCh. 16 - Prob. 67PCh. 16 - Prob. 68PCh. 16 - How many signals would the product of the...Ch. 16 - Prob. 70PCh. 16 - Prob. 71PCh. 16 - Prob. 72PCh. 16 - Prob. 73PCh. 16 - Prob. 74PCh. 16 - Prob. 75PCh. 16 - Prob. 76PCh. 16 - Prob. 77PCh. 16 - Prob. 78PCh. 16 - Draw structure for A-D for each of the following:Ch. 16 - Prob. 80PCh. 16 - a. Propose a mechanism for the following reaction:...Ch. 16 - Prob. 82PCh. 16 - A compound gives the following IR spectrum. Upon...Ch. 16 - How can be following compounds be prepared from...Ch. 16 - Prob. 85PCh. 16 - Prob. 86PCh. 16 - Prob. 87PCh. 16 - In the presence of an acid catalyst, acetaldehyde...Ch. 16 - Prob. 89PCh. 16 - Prob. 90PCh. 16 - Prob. 91PCh. 16 - A compound reacts with methylmagnesium bromide...Ch. 16 - Show how each of the following compounds can be...Ch. 16 - Prob. 94PCh. 16 - The pKa values of the carboxylic acid groups of...Ch. 16 - The Baylis-Hillman reaction is a DABCO...Ch. 16 - Prob. 97PCh. 16 - Prob. 98P
Knowledge Booster
Similar questions
- Write the mechanism for the following reactions:1. the acid-catalyzed hydrolysis of an imine to a carbonyl compound and a primary amine2. the acid-catalyzed hydrolysis of an enamine to a carbonyl compound and a secondary aminearrow_forwarda. What two amides are obtained from the reaction of acetyl chloride with an equivalent of ethylamine and an equivalent of propylamine?b. Why is only one amide obtained from the reaction of acetyl chloride with an equivalent of ethylamine and an equivalent of triethylamine?arrow_forwarda) Put these three common types of carbonyl compound in order of decreasing reactivity ester amide acid chloride b) For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable? c) For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?arrow_forward
- The reaction of an ester with an amine is not as slow as the reaction of an ester with water or an alcohol. Explain with reason. Explain why the rate of aminolysis of an ester cannot be increased by H+, OH- or OR-. How can you activate the carboxylic acid? Is acid catalyzed hydrolysis of acetamide a reversible or an irreversible reaction. Explain.arrow_forwardSeveral additional amine syntheses are effectively limited to making primary amines. The reduction of azides and nitrocompounds and the Gabriel synthesis leave the carbon chain unchanged. Formation and reduction of a nitrile adds onecarbon atom. Show how these amine syntheses can be used for the following conversions.(a) allyl bromide S allylamine (b) ethylbenzene S p@ethylanilinearrow_forwardTyramine is an alkaloid found in mistletoe and ripe cheese. Dopamine is a neurotransmitter involved in the regulation of the central nervous system. a. How can tyramine be prepared from β-phenylethylamine?b. How can dopamine be prepared from tyramine?c. Give two ways to prepare β-phenylethylamine from β-phenylethyl chloride.d. How can β-phenylethylamine be prepared from benzyl chloride?e. How can β-phenylethylamine be prepared from benzaldehyde?arrow_forward
- A. The water solubility of amines found in medications can be increased by salt formation. Dextromethorphan hydrobromide, a cough suppresant, is the salt formed from dextromethorphan (XX) and hydrobromic acid (HBr). Write the equation for the formation of dextromethorphan hydrobromide. B. Suggest appropriate starting materials ( amine and alkyl halide) needed for the preparation of each of the following salts: 1. Cetylpyridinium chloride 2. Benzyldimethyltetradecylammonium chloridearrow_forwardSynthesis of p-Bromoaniline Why is the protection of the amine function needed in this reaction? a) The protection increases the selectivity for the ortho substitution. b) The protection increases the reactivity of the reactant in the bromination. c) The protection changes the regioselectivity of reaxtion.arrow_forwardThe following three derivatives of succinimide are anticonvulsants that have found use in the treatment of epilepsy, particularly petit mal seizures. Q. Show how this same synthetic strategy can be used to prepare ethosuximide and methsuximide.arrow_forward
- What kinds of halides cannot be used to alkylate an amine? Why not? a.Tertiary halides form alkenes on elimination. b.Aryl halides unless activated by electron-withdrawing groups c.Halides with beta-alkyl groups are sterically hindered. d. all of the abovearrow_forwardSeveral additional amine syntheses are effectively limited to making primary amines. The reduction of azides and nitrocompounds and the Gabriel synthesis leave the carbon chain unchanged. Formation and reduction of a nitrile adds onecarbon atom. Show how these amine syntheses can be used for the following conversions. (c) 1@bromo@3@phenylheptane S 3@phenylheptan@1@amine (d) 1@bromo@3@phenylheptane S 4@phenyloctan@1@aminearrow_forwardPreamble: A student chemist in an attempt to synthesise compound B from the aromatic aldehyde. 24. What is the reaction name for the chemical transformation of A to BA. reductive aminationB. catalytic reductionC. carbonyl dehydrationD. Hofmann eliminationE. Aldehyde rearrangementarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning