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
Concept explainers
Question
Chapter 7, Problem 7.26P
Interpretation Introduction
Interpretation:
The
The mechanism of the Alkyne anion and Formaldehyde reaction to form the product indicated in brackets has to be proposed.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Acetal derivatives of aldehydes and ketones are prepared by an acid-catalyzed dehydration reaction with alcohols or diols. Using more pictures than words, draw a reaction and a mechanism that shows the formation of acetal.
Show how to bring about the following conversions using as one step the hydrolysis of a cyano group.
Hydration of aldehydes and ketones can be catalyzed by acid
or base. Bases catalyze hydration by:
protonating the carbonyl oxygen
making the carbonyl group more electrophilic
employing hydroxide ion, which is a better nucleophile than water
making the carbonyl group less electrophilic
shifting the equilibrium position of the reaction to favor products
Chapter 7 Solutions
Organic Chemistry
Ch. 7.2 - Write the IUPAC name of each compound.Ch. 7.2 - Write the common name of each alkyne.Ch. 7.5 - Prob. 7.3PCh. 7.7 - Draw a structural formula for a hydrocarbon with...Ch. 7.7 - Hydration of 2-pentyne gives a mixture of two...Ch. 7.9 - Prob. 7.6PCh. 7 - Prob. 7.7PCh. 7 - Show how to prepare each alkyne from the given...Ch. 7 - Prob. 7.9PCh. 7 - Complete each acid-base reaction and predict...
Ch. 7 - Draw structural formulas for the major product(s)...Ch. 7 - Draw the structural formula of the enol formed in...Ch. 7 - Prob. 7.13PCh. 7 - Prob. 7.14PCh. 7 - Prob. 7.15PCh. 7 - Show reagents and experimental conditions you...Ch. 7 - Show reagents and experimental conditions you...Ch. 7 - Show how to convert 1-butyne to each of these...Ch. 7 - Prob. 7.19PCh. 7 - Show reagents and experimental conditions to bring...Ch. 7 - Show reagents to bring about each conversion.Ch. 7 - Propose a synthesis for (Z)-9-tricosene...Ch. 7 - Propose a synthesis of each compound starting from...Ch. 7 - Show how to prepare each compound from 1-heptene....Ch. 7 - Prob. 7.25PCh. 7 - Prob. 7.26PCh. 7 - Following is the structural formula of the...Ch. 7 - The standard procedure for synthesizing a compound...Ch. 7 - Prob. 7.29PCh. 7 - Prob. 7.30PCh. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Using your reaction roadmap as a guide, show how...Ch. 7 - Prob. 7.35P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Following is the structural formula of the tranquilizer meparfynol (Oblivon). Propose a synthesis for this compound starting with acetylene and a ketone. (Notice the -yn- and -ol in the chemical name of this compound, indicating that it contains alkyne and hydroxyl functional groups.)arrow_forwardAldehydes and ketones react with one molecule of an alcohol to form compounds called hemiacetals, in which there is one hydroxyl group and one ether-like group. Reaction of a hemiacetal with a second molecule of alcohol gives an acetal and a molecule of water. We study this reaction in Chapter 16. Draw structural formulas for the hemiacetal and acetal formed from these reagents. The stoichiometry of each reaction is given in the problem.arrow_forwardA problem often encountered in the oxidation of primary alcohols to acids is that esters are sometimes produced as by-products. For example, oxidation of ethanol yields acetic acid and ethyl acetate: Propose a mechanism to account for the formation of ethyl acetate. Take into account the reversible reaction between aldehydes and alcohols:arrow_forward
- Alkyne anions react with the carbonyl groups of aldehydes and ketones to form alkynyl alcohols, as illustrated by the following sequence. HCI CH,C=C Na* + H-C-H [CH,C=C-CH,O Na*] H,O → CH,C=C-CH,OH Propose a mechanism for the formation of the bracketed compound, using curved arrows to show the flow of electron pairs in the course of the reaction.arrow_forwardhelparrow_forwardWhat are the three alkenes formed in the acid-catalyzed dehydration of 2-pentanol? Propose the mechanism of their formation.arrow_forward
- Provide the necessary reagents to complete the following reaction in multiple steps. You may only use alcohols as the starting precursors whose carbon atoms are incorporated into the final product. ОНarrow_forwardWhat reactions and reagents can be used to make phenol from benzene if electrophilic aromatic substitution reactions are excluded and benzene is the only source of carbon?arrow_forwardFollowing is the structural formula of the tranquilizer meparfynol (Oblivon). Oblivon HO Propose a synthesis for this compound starting with acetylene and a ketone. (Notice the -yn- and -ol in the chemical name of this compound, indicating that it contains al- kyne and hydroxyl functional groups.)arrow_forward
- Describe how 3-methyl-1-phenyl-3-pentanol can be prepared from benzene. You can use any inorganic reagents and solvents, and any organic reagents provided they contain no more than two carbons.arrow_forwardA synthetic organic molecule, G, which contains both aldehyde and ether functional groups, is subjected to a series of reactions in a multi-step synthesis pathway. In the first step, G undergoes a Wittig reaction, leading to the formation of an alkene, H. Subsequently, H is treated with an ozone (O3) reagent followed by a reducing agent in an ozonolysis reaction, resulting in the formation of two different products, I and J. Considering the functional groups present in G and the nature of the reactions involved, what are the most probable structures or functional groups present in products I and J? A. I contains a carboxylic acid group, and J contains an aldehyde group. B. I contains a ketone group, and J contains an alcohol group. C. I and J both contain aldehyde groups. D. I contains an ester group, and J contains a ketone group. Don't use chat gpt.arrow_forwardAcetylene reacts with sodium amide in the presence of propyl halide produces aldehyde produces ketones It produces 2-pentanearrow_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: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning