Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
9th Edition
ISBN: 9781292151229
Author: Wade, LeRoy G.
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 17, Problem 17.64SP
Furan undergoes electrophilic
- a. Propose mechanisms for the bromination of furan at the 2-position and at the 3-position. Draw the resonance forms of each sigma complex, and compare their stabilities.
- b. Explain why furan undergoes bromination (and other electrophilic aromatic substitutions) primarily at the 2-position.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Furan undergoes electrophilic aromatic substitution more readily than benzene; mild reagents and conditions are sufficient.For example, furan reacts with bromine to give 2-bromofuran. Explain why furan undergoes bromination (and other electrophilic aromatic substitutions) primarily at the 2-position.
Give an explanation, why the acidity of these phenolic derivatives give these pKa value? Describe it by using the electronic effect on the acidity.
Furan undergoes electrophilic aromatic substitution more readily than benzene; mild reagents and conditions are sufficient.For example, furan reacts with bromine to give 2-bromofuran.(a) Propose mechanisms for the bromination of furan at the 2-position and at the 3-position. Draw the resonance forms ofeach sigma complex, and compare their stabilities.(b) Explain why furan undergoes bromination (and other electrophilic aromatic substitutions) primarily at the 2-position.O Br O123furan 2-bromofuran
Chapter 17 Solutions
Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
Ch. 17.1 - Prob. 17.1PCh. 17.2 - Prob. 17.2PCh. 17.3 - Prob. 17.3PCh. 17.4 - Use resonance forms to show that the dipolar sigma...Ch. 17.6A - Prob. 17.5PCh. 17.6A - Prob. 17.6PCh. 17.6B - Propose a mechanism for the brommation of...Ch. 17.6B - Prob. 17.8PCh. 17.6B - Prob. 17.9PCh. 17.7 - Prob. 17.10P
Ch. 17.8 - Draw all the resonance forms of the sigma complex...Ch. 17.9 - Predict the mononitration products of the...Ch. 17.9 - Predict the mononitration products of the...Ch. 17.9 - Prob. 17.14PCh. 17.10 - Propose products (if any) and mechanisms for the...Ch. 17.10 - Predict the products (if any) of the following...Ch. 17.10 - Which reactions will produce the desired product...Ch. 17.10 - Prob. 17.19PCh. 17.11C - Prob. 17.20PCh. 17.12A - Prob. 17.21PCh. 17.12B - Propose a mechanism that shows why p-chlorotoluene...Ch. 17.12B - Propose mechanisms and show the expected products...Ch. 17.12B - Prob. 17.24PCh. 17.13A - What products would you expect from the following...Ch. 17.13A - What organocuprate reagent would you use for the...Ch. 17.13B - What products would you expect from the following...Ch. 17.13B - Prob. 17.28PCh. 17.13C - What products would you expect from the following...Ch. 17.13C - Prob. 17.30PCh. 17.14C - Prob. 17.31PCh. 17.14C - Predict the major products of the following...Ch. 17.15A - Predict the major products of treating the...Ch. 17.15B - Prob. 17.34PCh. 17.15B - Prob. 17.35PCh. 17.15B - Predict the major products when the following...Ch. 17.15C - Prob. 17.37PCh. 17.15C - a. Based on what you know about the relative...Ch. 17.15C - Show how you would synthesize the following...Ch. 17.16A - The bombardier beetle defends itself by spraying a...Ch. 17.16B - Predict the products formed when m-cresol...Ch. 17.16B - Prob. 17.42PCh. 17.16B - Prob. 17.43PCh. 17.16B - Predict the site(s) of electophilic attack on...Ch. 17.16B - Prob. 17.45PCh. 17.16B - Prob. 17.46PCh. 17.16B - Propose a synthetic sequence of this...Ch. 17.16B - Prob. 17.48PCh. 17.16B - Starting from toluene, propose a synthesis of this...Ch. 17 - Prob. 17.50SPCh. 17 - Prob. 17.51SPCh. 17 - Show how you would synthesize the following...Ch. 17 - Predict the major products of the following...Ch. 17 - Predict the major products of bromination of the...Ch. 17 - What products would you expect from the following...Ch. 17 - Prob. 17.56SPCh. 17 - Prob. 17.57SPCh. 17 - The following compound reacts with a hot,...Ch. 17 - Prob. 17.59SPCh. 17 - Electrophilic aromatic substitution usually occurs...Ch. 17 - Prob. 17.62SPCh. 17 - The most common selective herbicide for killing...Ch. 17 - Furan undergoes electrophilic aromatic...Ch. 17 - Prob. 17.65SPCh. 17 - Bisphenol A is an important component of many...Ch. 17 - Prob. 17.67SPCh. 17 - Prob. 17.68SPCh. 17 - Prob. 17.69SPCh. 17 - In Chapter14, we saw that Agent Orange contains...Ch. 17 - Phenol reacts with three equivalents of bromine in...Ch. 17 - Prob. 17.72SPCh. 17 - Prob. 17.73SPCh. 17 - A common illicit synthesis of methamphetamine...Ch. 17 - Prob. 17.75SPCh. 17 - Prob. 17.76SPCh. 17 - Prob. 17.77SPCh. 17 - Prob. 17.78SP
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
- Furan undergoes electrophilic aromatic substitution more readily than benzene; mild reagents and conditions are sufficient.For example, furan reacts with bromine to give 2-bromofuran.Propose mechanisms for the bromination of furan at the 2-position and at the 3-position. Draw the resonance forms ofeach sigma complex, and compare their stabilities.arrow_forward10. MM and NN are amines with molecular formula, C3H9N. Reaction of MM with sodium nitrite and HCl releases nitrogen gas and produces a mixture of XX and YY, while NN produces yellowish oily compound ZZ when reacts with the same reagent. Gives the structures of MM, NN, XX, YY and ZZ. Outline a synthesis of MM from a suitable alkene.arrow_forwardBriefly explain or give an introduction to this. Structure Elucidation of Compounds using Several Spectroscopic Techniques. 1H and 13C NMR Spectroscopy IR Spectroscopy Mass Spectroscopyarrow_forward
- 1, 6-Methanonaphthalene has an interesting 1H NMR spectrum in which the eight hydrogens around the perimeter absorb at 6.9 to 7.3 δ, while the two CH2 protons absorb at -0.5 δ. Tell whether it is aromatic, and explain its NMR spectrum.arrow_forward3. It is required to introduce a halogen group to a five membered ring, thiophene. Discuss the reaction mechanism involved in the reaction by selecting a suitable halogen group and analyze why a particular substituted product obtained after the reaction is predominant over the other possible product(s) with the help of reactions. To meet the ever increasing demand of global population, the demand for textile products and consumption of dyes by these industries is increasing.arrow_forward10. M and N are amines with the molecular formula C3H»N. Reaction of M with sodium nitrite and HCI releases nitrogen gas and produces a mixture of X and Y and Propanol while N produces a yellowish oily compound, S when reacted with the same reagents. Give the structures of M, N, X, Y, and S. Outline the synthesis of M from a suitable alkene.arrow_forward
- Possible alternative brominations include: Veratrole (1,2-dimethoxybenzene) to 1,2-dibromo-4,5-dimethoxybenzene; 4-Methylacetanilide to 2-bromo-4-methylacetanilide; 2-Methylacetanilide (made in experiment S.1) to 4-bromo-2-methylacetanilide; Vanillin to 5-bromovanillin; Acetanilide to 4-bromoacetanilide; a. b. C. d. e. EXPERIMENT S4: BROMINATION OF AROMATIC COMPOUNDS Certain other acetanilides made in experiment S.1 may also be used as precursors in this experiment. Estimated time: 1 afternoon Associated learning goals: Section 6, LG 6.6; Section 7, LG 7.2 and 7.4 Pre-lab report: complete the standard report form, and answer the following questions. In this experiment, molecular bromine (Br2) is generated from the redox reaction of potassium bromate with hydrobromic acid. Write a balanced equation for this process. Briefly outline the mechanism by which Br2 brominates your aromatic compound. Why do the bromine atoms end up at the positions indicated rather than anywhere else in the…arrow_forwardQ1/Do as required: 1-The role of H2SO4 in Preparation of Nitrobenzene. Explain 2- Preparation of Nitrobenzene in cool phase. 3-In an experiment Hydrolysis of Acetanilide What color does the litmus paper change to and why? 4-When acetanilide reacts with bromine (x), acctanilide gives p-bromo acetanil 5- why used strongly alkaline (NaOH)in Preparation of Aniline?arrow_forwardWhich of the following are consistent with the requirements for aromaticity?I. A system with delocalized p electrons in a ring.II. 4n p electrons in the ring.III. All the ring atoms must be carbons.IV. (4n + 2) p electrons in the ring. Give the answer why.arrow_forward
- Compound A reacts with hydrogen to form cyclooctane. Upon reaction with 03, compound A forms 2 moles of 20. Provide a structure for compound A.arrow_forwardMCQ 16: In SN2 mechanism 'S' stands for A. subordinate B. substitution C. sub-reaction D. systemic reactionarrow_forwardGrignard reagent is a versatile tool in synthetic organic chemistry. Using bromocyclopentane as a starting material, show how a Grignard reagent, X, is synthesized. Reaction of X with water produces compound Y while treatment in carbon dioxide followed by hydrolysis forms compound Z. 3-methyl-2butanone reacts with X and hydrolyses to yield compound AA. Draw the structural formulae of compounds Y, Z and AA and write the chemical equations respectively.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Coenzymes and cofactors; Author: CH15 SWAYAM Prabha IIT Madras;https://www.youtube.com/watch?v=bubY2Nm7hVM;License: Standard YouTube License, CC-BY
Aromaticity and Huckel's Rule; Author: Professor Dave Explains;https://www.youtube.com/watch?v=7-BguH4_WBQ;License: Standard Youtube License