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Aromatic heterocycles can undergo electrophilic aromatic substitution like benzene. Groups attached to the heterocycle can therefore have similar directing effects as they can on benzene. Keeping this in mind, consider the following reaction, where E+ is a general electrophile: a) Draw all relevant resonance structures for the intermediate of each product b) Based on your answers to part a), which product do you expect to be the major product and why? (2 points) c) If you performed this reaction in the laboratory, which instrumental technique (ex: 1H NMR, IR, Mass Spectrometry) would be best to determine which product you obtained of the three and why?

Aromatic heterocycles can undergo electrophilic aromatic substitution like benzene. Groups attached to the heterocycle can therefore have similar directing effects as they can on benzene. Keeping this in mind, consider the following reaction, where E+ is a general electrophile: a) Draw all relevant resonance structures for the intermediate of each product b) Based on your answers to part a), which product do you expect to be the major product and why? (2 points) c) If you performed this reaction in the laboratory, which instrumental technique (ex: 1H NMR, IR, Mass Spectrometry) would be best to determine which product you obtained of the three and why?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Aromatic heterocycles can undergo electrophilic aromatic substitution like benzene. Groups attached to the heterocycle can therefore have similar directing effects as they can on benzene. Keeping this in mind, consider the following reaction, where E+ is a general electrophile:

a) Draw all relevant resonance structures for the intermediate of each product

b) Based on your answers to part a), which product do you expect to be the major product and why? (2 points)
c) If you performed this reaction in the laboratory, which instrumental technique (ex: 1H NMR, IR, Mass Spectrometry) would be best to determine which product you obtained of the three and why?

2. Aromatic heterocycles can undergo electrophilic aromatic substitution like benzene. Groups attached to the heterocycle can therefore have similar directing effects as they can on benzene. Keeping this in mind, consider the following reaction, where E+ is a general electrophile: .S E+ .S. E- or or Br Br E Br Br A a) Draw all relevant resonance structures for the intermediate of each product. Product A: .S. Br Product B: .S. E Br Product C: E- (+) Br
Transcribed Image Text:2. Aromatic heterocycles can undergo electrophilic aromatic substitution like benzene. Groups attached to the heterocycle can therefore have similar directing effects as they can on benzene. Keeping this in mind, consider the following reaction, where E+ is a general electrophile: .S E+ .S. E- or or Br Br E Br Br A a) Draw all relevant resonance structures for the intermediate of each product. Product A: .S. Br Product B: .S. E Br Product C: E- (+) Br
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