Organic Chemistry-Package(Custom)
4th Edition
ISBN: 9781259141089
Author: SMITH
Publisher: MCG
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Chapter 18, Problem 18.18P
Rank the following compounds in order of increasing reactivity in electrophilic
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Consider the tetracyclic aromatic compound drawn below, with rings labeled as A, B, C, and D. (a) Which of the four rings is most reactive in electrophilic aromatic substitution? (b) Which of the four rings is least reactive in electrophilic aromatic substitution? (c) What are the major product(s) formed when this compound is treated with one equivalent of Br2?
Consider the tetracyclic aromatic compound drawn below, with rings labeled as A, B, C, and D. (a) Which of the four rings is most reactive in electrophilic aromatic substitution? (b) Which of the four rings is least reactive in electrophilic aromatic substitution? (c) What are the major product(s) formed when this compound is treated with one equivalent of Br2?
Fluorination of a benzene ring can be accomplished with Selectfluor, a reagent that contains a fluorine bonded to a positively charged nitrogen atom. Fluorination is a useful reaction because several common drugs, such as the cholesterol-lowering drug atorvastatin, contain a fluorine bonded to an aromatic ring. Assuming that fluorination is analogous to other examples of electrophilic aromatic substitution, draw a stepwise mechanism for the following reaction.
Chapter 18 Solutions
Organic Chemistry-Package(Custom)
Ch. 18 - Prob. 18.1PCh. 18 - Prob. 18.2PCh. 18 - Prob. 18.3PCh. 18 - Prob. 18.4PCh. 18 - Prob. 18.5PCh. 18 - What acid chloride would be needed to prepare each...Ch. 18 - Prob. 18.7PCh. 18 - Draw a stepwise mechanism for the following...Ch. 18 - Prob. 18.9PCh. 18 - Prob. 18.10P
Ch. 18 - Prob. 18.11PCh. 18 - Prob. 18.12PCh. 18 - Problem 18.14 Draw all resonance structures for...Ch. 18 - Classify each substituent as electron donating or...Ch. 18 - Prob. 18.15PCh. 18 - Label each compound as more or less reactive than...Ch. 18 - Rank the following compounds in order of...Ch. 18 - Problem 18.18 Rank the following compounds in...Ch. 18 - Prob. 18.19PCh. 18 - Problem 18.20 Draw the products of each...Ch. 18 - Prob. 18.21PCh. 18 - Prob. 18.22PCh. 18 - Devise a synthesis of each compound from the...Ch. 18 - Problem 18.24 Draw the products of each...Ch. 18 - Problem 18.25 Draw a stepwise mechanism for the...Ch. 18 - Problem 18.26 Draw the products of each...Ch. 18 - Prob. 18.27PCh. 18 - Prob. 18.28PCh. 18 - Problem 18.29 How could you use ethylbenzene to...Ch. 18 - Prob. 18.30PCh. 18 - Problem 18.31 What steps are needed to convert...Ch. 18 - Problem 18.32 Synthesize each compound from...Ch. 18 - Synthesize each compound from benzene.Ch. 18 - Prob. 18.34PCh. 18 - 18.35 What is the major product formed by an...Ch. 18 - Draw the products formed when phenol (C6H5OH) is...Ch. 18 - Prob. 18.37PCh. 18 - Draw the products of each reaction. a. e. i. b. f....Ch. 18 - What products are formed when benzene is treated...Ch. 18 - Draw the products of each reaction. a.d. b.e. c.f.Ch. 18 - You have learned two ways to make an alkyl...Ch. 18 - Prob. 18.42PCh. 18 - Prob. 18.43PCh. 18 - 18.45 Explain why each of the following reactions...Ch. 18 - Prob. 18.45PCh. 18 - 18.47 For each of the following substituted...Ch. 18 - Which benzene ring in each compound is more...Ch. 18 - 18.49 For each N-substituted benzene, predict...Ch. 18 - Explain each statement in detail using resonance...Ch. 18 - Prob. 18.50PCh. 18 - Explain why the meta product is formed in the...Ch. 18 - 18.53 Rank the aryl halides in each group in order...Ch. 18 - Prob. 18.53PCh. 18 - 18.54 Draw a stepwise mechanism for the following...Ch. 18 - Prob. 18.55PCh. 18 - 18.56 Draw a stepwise, detailed mechanism for the...Ch. 18 - Prob. 18.57PCh. 18 - 18.58 Draw a stepwise mechanism for the following...Ch. 18 - Draw a stepwise mechanism for the following...Ch. 18 - Prob. 18.60PCh. 18 - Draw a stepwise mechanism for the following...Ch. 18 - Prob. 18.62PCh. 18 - Prob. 18.63PCh. 18 - Synthesize each compound from benzene and any...Ch. 18 - Synthesize each compound from benzene and any...Ch. 18 - Synthesize each compound from toluene (C6H5CH3)...Ch. 18 - Prob. 18.67PCh. 18 - Use the reactions in this chapter along with those...Ch. 18 - Prob. 18.69PCh. 18 - Prob. 18.70PCh. 18 - Problem 18.69 Identify the structures of isomers A...Ch. 18 - Prob. 18.72PCh. 18 - Problem 18.71 Compound X (molecular formula ) was...Ch. 18 - Prob. 18.74PCh. 18 - The NMR spectrum of phenol () shows three...Ch. 18 - Explain the reactivity and orientation effects...Ch. 18 - Prob. 18.77PCh. 18 - Prob. 18.78PCh. 18 - Prob. 18.79PCh. 18 - Prob. 18.80P
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- Fluorination of a benzene ring can be accomplished with Selectfluor, a reagent that contains a fluorine bonded to a positively charged nitrogen atom. Fluorination is a useful reaction because several common drugs, such as the cholesterol-lowering drug atorvastatin, contain a fluorine bonded to an aromatic ring. Assuming that fluorination is analogous to other examples of electrophilic aromatic substitution, draw a stepwise mechanism for the following reaction.arrow_forwardA bicyclic heterocycle aromatic ring with one N atom and the rings are of different size. a Indole b Pyrazine c Purine d Quinolinearrow_forwardBenzopyrene, naphthalene and pyrene are members of these group of aromaticcompounds: *Non-benzenoid aromatic compoundsHeterocyclic aromatic compoundsBenzenoid aromatic compoundsHeteronuclear compoundsWhat type of aromatic compound is pyridine? *Benzenoid aromatic compoundNon-benzenoid aromatic compoundHomonuclear cyclic compoundHeterocyclic aromatic compoundWhat property of aromatic rings prevent the involvement of the conjugated structure toaddition reactions? *Radical stabilizationResonance stabilityInductive effectAromatic effectarrow_forward
- Rank the compounds in order of increasing reactivity in electrophilic aromatic substitution. Briefly explain your answer. CóH5OH, C6H5SO3H, C6H5CIarrow_forwardArrange the following compounds in an increasing order of their reactivity in nucleophilic addition reactions : ethanal, propanal, propanone, butanone.arrow_forwardRank each set of compounds in order of increasing basicity.aniline, pyrrole, pyridine, piperidinearrow_forward
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- CHEM 2252 Label the following compounds as aromatic, anti-aromatic, or non-aromatic (assume that all molecules are planar). In-class Assignment #4 Predict the product that would be formed when biphenyl reacts with a mixture of nitric and sulfuric acid. Draw a detailed, step-wise mechanism that shows formation of the electrophile and explains the observed regiochemistry. HNO3 H₂SO4arrow_forwardRank each set of compounds in order of increasing basicity.pyrrole, imidazole, 3-nitropyrrolearrow_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_forward
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