At what position, and on what ring, would you expect the following substance to undergo electrophilic substitution? CI oto Draw the structure and indicate with asterisk(s) the expected position of electrophilic substitution.
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- Consider the tetracyclic aromatic compound drawn below, with rings labeled as A, B, C, and (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 produces) formed when this compound is treated with one equivalent of Br2?(b) Predict the major product (or products) formed when each of the following compounds 11- 14 reacts with a mixture of concentrated HNO3 and H2SO4. CO2H HN CO2H CI 11 12 13 14 (c) Pick one of the reactions under (b) and write the mechanism of the electrophilic aromatic substitution in detail (generation of the attacking electrophile is not required).For following substituted benzenes: [1] C6H5Br; [2] C6H5CN; [3] C6H5OCOCH3: Does the substituent activate or deactivate the benzene ring inelectrophilic aromatic substitution?
- At what position would you expect electrophilic substitution to occur in the following substances?b) Listed below are several hypothetical nucleophilic substitution reactions. None is synthetically useful because the product indicated is not formed at an appreciable rate. In each case provide an explanation for the failure of the reaction to take place as indicated. OMe HO + OMe + OH HO + CH; OHOn which ring and at what position/s would electrophilic aromatic substitution take place in the molecule below? Briefly account for your choice. A B CH3
- Rank the following carboxylic acids derivatives based on their reactivity towards nucleophiles (1-most reactive - 4- least reactive), and describe the structural features you use to detrmine your ranking.Electrophilic aromatic substitution usually occurs at the 1-position of naphthalene, also called the a position. Predict themajor products of the reactions of naphthalene with the following reagents.(a) HNO3, H2SO4Rank the compounds in order of increasing reactivity in electrophilic aromatic substitution. Briefly explain your answer. CóH5OH, C6H5SO3H, C6H5CI
- Identify the electrophile and the nucleophile in each of the following reaction steps and then draw curved arrows to illustrate the bond-making and bondbreaking processes.Show how to synthesize each of the following compounds using only a single nucleophilic aromatic substitution reaction. (a) NO, (b) (c) NO2 O,N ноProvide the major product of each of the following reactions: What do all these reactions have in common? How do all reactions differ?