Organic Chemistry (9th Edition)
Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Chapter 19, Problem 19.54SP

Pyrrole undergoes electrophilic aromatic substitution more readily than benzene, and mild reagents and conditions are sufficient. These reactions normally occur at the 2-position rather than the 3-position, as shown in the following example.

Chapter 19, Problem 19.54SP, Pyrrole undergoes electrophilic aromatic substitution more readily than benzene, and mild reagents

  1. a. Propose a mechanism for the acetylation of pyrrole just shown. You may begin with pyrrole and the acylium ion, CH3-C O+ . Be careful to draw all the resonance structures of the intermediate.
  2. b. Explain why pyrrole reacts more readily than benzene, and also why substitution occurs primarily at the 2-position rather than the 3-position.
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Chapter 19 Solutions

Organic Chemistry (9th Edition)

Ch. 19.10B - Propose a mechanism for nitration of pyridine at...Ch. 19.10B - Prob. 19.12PCh. 19.10C - Prob. 19.13PCh. 19.10C - Prob. 19.14PCh. 19.11 - Propose a mechanism to show the individual...Ch. 19.11 - Prob. 19.16PCh. 19.12 - Give the products expected from the following...Ch. 19.13 - Prob. 19.18PCh. 19.13 - Prob. 19.19PCh. 19.14 - Prob. 19.20PCh. 19.15 - Prob. 19.21PCh. 19.15 - Prob. 19.22PCh. 19.16 - Prob. 19.23PCh. 19.17 - Prob. 19.24PCh. 19.17 - Prob. 19.25PCh. 19.18 - Prob. 19.26PCh. 19.19 - Prob. 19.27PCh. 19.20A - Addition of one equivalent of ammonia to...Ch. 19.20A - Prob. 19.29PCh. 19.20B - Show how you would accomplish the following...Ch. 19.20C - Prob. 19.31PCh. 19 - For each compound, 1. classify the...Ch. 19 - Prob. 19.33SPCh. 19 - Within each structure, rank the indicated...Ch. 19 - In each pair of compounds, select the stronger...Ch. 19 - Which of the following compounds are capable of...Ch. 19 - Complete the following proposed acid-base...Ch. 19 - Predict the products of the following reactions:...Ch. 19 - Prob. 19.39SPCh. 19 - Show how m-toluidine can be converted to the...Ch. 19 - The mass spectrum of tert-butylamine follows shows...Ch. 19 - Prob. 19.42SPCh. 19 - The following drugs are synthesized using the...Ch. 19 - Prob. 19.44SPCh. 19 - Synthesize from benzene. (Hint: All of these...Ch. 19 - Propose mechanisms for the following reactions.Ch. 19 - Prob. 19.47SPCh. 19 - Prob. 19.48SPCh. 19 - Prob. 19.49SPCh. 19 - Show how you can synthesize the following...Ch. 19 - Prob. 19.51SPCh. 19 - The alkaloid coniine has been isolated from...Ch. 19 - A chemist is summoned to an abandoned...Ch. 19 - Pyrrole undergoes electrophilic aromatic...Ch. 19 - Prob. 19.55SPCh. 19 - Prob. 19.56SPCh. 19 - An unknown compound shows a weak molecular ion at...Ch. 19 - A compound of formula C11H16N2 gives the IR,...Ch. 19 - (A true story.) A drug user responded to an ad...Ch. 19 - Prob. 19.60SPCh. 19 - Prob. 19.61SPCh. 19 - Prob. 19.62SPCh. 19 - Prob. 19.63SPCh. 19 - Prob. 19.64SPCh. 19 - Prob. 19.65SP
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