Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Textbook Question
Chapter 19, Problem 78P
Friedel-Crafts alkylations can be carried out with carbocations formed from reactions other than the reaction of an
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Chapter 19 Solutions
Organic Chemistry
Ch. 19.1 - Draw the structure for each of the following: a....Ch. 19.2 - PROBLEM 2
If electrophilic addition to benzene is...Ch. 19.4 - Why does hydration inactivate FeBr3?Ch. 19.6 - Prob. 5PCh. 19.7 - Prob. 6PCh. 19.8 - What is the major product of a Friedel-Crafts...Ch. 19.10 - Describe two ways to prepare each of the following...Ch. 19.12 - Prob. 9PCh. 19.13 - Name the following:Ch. 19.13 - Prob. 12P
Ch. 19.13 - Prob. 13PCh. 19.13 - Prob. 14PCh. 19.14 - Prob. 15PCh. 19.14 - List the compounds in each set from most reactive...Ch. 19.15 - Prob. 18PCh. 19.15 - What product(s) result from nitration of each of...Ch. 19.15 - Prob. 20PCh. 19.16 - Which acid in each of the following pairs is...Ch. 19.16 - Prob. 23PCh. 19.16 - Prob. 24PCh. 19.18 - Show how the following compounds can be...Ch. 19.18 - Give the products, if any, of each of the...Ch. 19.19 - a. Does a coupling reaction have to be used to...Ch. 19.19 - PROBLEM 28
Show how each of the following...Ch. 19.20 - What is the major product(s) of each of the...Ch. 19.20 - Prob. 30PCh. 19.21 - Why isn't FeBr3 used as a catalyst in the first...Ch. 19.21 - Prob. 33PCh. 19.21 - Write the sequence of steps required for the...Ch. 19.21 - Prob. 35PCh. 19.22 - What product is formed from reaction of...Ch. 19.22 - Prob. 37PCh. 19.22 - Draw the structure of the activated ring and the...Ch. 19.23 - Prob. 39PCh. 19.23 - Prob. 40PCh. 19.23 - Diazomethane can be used to convert a carboxylic...Ch. 19.24 - Prob. 42PCh. 19.24 - Prob. 43PCh. 19.24 - Prob. 44PCh. 19.25 - Prob. 45PCh. 19 - Draw the structure for each of the following: a....Ch. 19 - Prob. 47PCh. 19 - Prob. 48PCh. 19 - Prob. 49PCh. 19 - For each of the statements in Column I, choose a...Ch. 19 - What product is obtained from the reaction of...Ch. 19 - Draw the product(s) of each of the following...Ch. 19 - Rank the following substituted anilines from most...Ch. 19 - Prob. 54PCh. 19 - The compound with the 1H NMR spectrum shown below...Ch. 19 - Prob. 56PCh. 19 - Show how the following compounds can be...Ch. 19 - Prob. 58PCh. 19 - Rank each group of compounds from most reactive to...Ch. 19 - Prob. 60PCh. 19 - Describe two ways to prepare anisole from benzene.Ch. 19 - For each of the following components, indicate the...Ch. 19 - Prob. 63PCh. 19 - Prob. 64PCh. 19 - Prob. 65PCh. 19 - Prob. 66PCh. 19 - An aromatic hydrocarbon with a molecular formula...Ch. 19 - The following tertiary alkyl bromides undergo an...Ch. 19 - Show how the following compounds can be...Ch. 19 - Use the four compounds shown below to answer the...Ch. 19 - a. Rank the following esters from most reactive to...Ch. 19 - A mixture of 0.10 mol benzene and 0.10 mol...Ch. 19 - Prob. 73PCh. 19 - Benzene underwent a Friedel-Crafts acylation...Ch. 19 - Prob. 75PCh. 19 - Prob. 76PCh. 19 - Prob. 77PCh. 19 - Friedel-Crafts alkylations can be carried out with...Ch. 19 - Show how the following compounds can be prepared...Ch. 19 - Prob. 80PCh. 19 - Prob. 81PCh. 19 - a. Describe four ways the following reaction can...Ch. 19 - Propose a mechanism for each of the following...Ch. 19 - Prob. 84PCh. 19 - Describe how naphthalene can he prepared from the...Ch. 19 - Prob. 86PCh. 19 - Using resonance contributors for the carbocation...Ch. 19 - Prob. 88PCh. 19 - When heated with chromic acid, compound A forms...Ch. 19 - Prob. 90PCh. 19 - Prob. 91PCh. 19 - What reagents are required to carry out the...Ch. 19 - Show how the following compounds can be prepared...Ch. 19 - An unknown compound reacts with ethyl chloride and...Ch. 19 - How can you distinguish the following compounds...Ch. 19 - P-Fluoronitrobenzene is more reactive toward...Ch. 19 - a. Explain why the following reaction leads to the...Ch. 19 - Describe how mescaline can be synthesized from...Ch. 19 - Propose a mechanism for the following reaction...Ch. 19 - Explain why hydroxide ion catalyzes the reaction...Ch. 19 - Propose a mechanism for each of the following...Ch. 19 - Prob. 102PCh. 19 - Prob. 103PCh. 19 - Describe how 3-methyl-1-phenyl-3-pentanol can he...Ch. 19 - a. How can aspirin be synthesized from benzene? b....Ch. 19 - Prob. 106PCh. 19 - Show how Novocain, a painkiller used frequently by...Ch. 19 - Prob. 108PCh. 19 - Saccharin, an artificial sweetener, is about 300...
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- Aldehydes and ketones react with thiols to yield thioacetals just as they react with alcohols to yield acetals. Predict the product of the following reaction, and propose a mechanism:arrow_forwardNonconjugated , -unsaturated ketones, such as 3-cyclohexenone, are in an acid-catalyzed equilibrium with their conjugated , -unsaturated isomers. Propose a mechanism for this isomerization.arrow_forwardEthylene oxide is the starting material for the synthesis of 1,4-dioxane. Propose a mechanism for each step in this synthesis.arrow_forward
- Claisen rearrangement of an allyl phenyl ether with substituent groups in both ortho positions leads to the formation of a para-substituted product. Propose a mechanism for the following rearrangement.arrow_forwardWhen cis-4-chlorocyclohexanol is treated with sodium hydroxide in ethanol, it gives mainly the substitution product trans-1,4-cyclohexanediol (1). Under the same reaction conditions, trans-4-chlorocyclohexanol gives 3-cyclohexenol (2) and the bicyclic ether (3). (a) Propose a mechanism for formation of product (1), and account for its configuration. (b) Propose a mechanism for formation of product (2). (c) Account for the fact that the bicyclic ether (3) is formed from the trans isomer but not from the cis isomer.arrow_forwardAmines are converted into alkenes by a two-step process called Hofmann elimination. SN2 reaction of the amine with an excess of CH3I in the first step yields an intermediate that undergoes E2 reaction when treated with silver oxide as base. Pentylamine, for example, yields 1-pentene. Propose a structure for the intermediate, and explain why it readily undergoes elimination.arrow_forward
- Knoevenagel condensation is a reaction involving an active methylene compound (a CH2 flanked by two electron-withdrawing groups) and an aldehyde and ketone. Propose a mechanism for the reaction below.arrow_forwardIt is not uncommon for organic chemists to prepare acetals by an exchange-type process known as transacetalization. Predict the product(s) and show the mechanism for the transacetalization reactions below.arrow_forwardThe Meerwein-Ponndorf-Verley reaction involves reduction of a ketone by treatment with an excess of aluminum triisopropoxide, [(CH3)2CHO]3Al. The mechanism of the process is closely related to the Cannizzaro reaction in that a hydride ion acts as a leaving group. Propose a mechanism.arrow_forward
- Dihydropyran is synthesized by treating tetrahydrofurfuryl alcohol with an arenesulfonic acid, ArSO3H. Propose a mechanism for this conversion.arrow_forwardCyclohexene can be converted to 1-cyclopentenecarbaldehyde by the following series of reactions. Propose a structural formula for each intermediate compound.arrow_forwardThe base-promoted rearrangement of an a-haloketone to a carboxylic acid, known as the Favorskii rearrangement, is illustrated by the conversion of 2-chlorocyclohexanone to cyclopentanecarboxylic acid. Jo Han Sow La NaOH, THF O Nat H3O+ OH NaOH, THF The mechanism involves the following 5 steps: -ō cyclopropanone intermediate 1. Abstraction of a proton to form enolate anion 1; 2. Formation of a cyclopropanone intermediate 2 with expulsion of chloride ion; 3. Addition of hydroxide ion to form tetrahedral intermediate 3; 4. Collapse of the tetrahedral intermediate and breakage of the three-membered ring to form carbanion intermediate 4; 5. Proton transfer to form the rearranged carboxylic acid. For the following reaction, draw the reaction out on paper, and then draw the structure of cyclopropanone intermediate 2 in the window. 1. NaOH, THF 2. H3O* OHarrow_forward
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