a uestions (cont d) 3. Is the following substituted benzene activated or deactivated towards electrophilic aromatures...
Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. CF3 Br NH2 OH A 00 D E F ОЕ OF D ОА OB Ос
Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. CF3 OH NH2 А B D E A D Ос B F ОЕ
Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. ОН NH2 CF, Br E F A B OD B ОА OF Ос ОЕ
3 pts Predict the major product(s) of the following reaction. Select all that apply. If a reaction would yield both ortho and para products, select both answers. HNO3 H2SO4 Product NO2 ON ON NO2 А B с D B А No Reaction. The reaction would not give a product. Ос OD Rank the substituted benzene molecules in order from 1 - most activated to 5 - least activated (most deactivated) towards electrophilic aromatic substitution. OH CF3 он Br A B...
4. Answer the following questions based on the electrophilic aromatic substitution reaction shown below. door a. (2.5pts) Based on the identity of the substituent on the starting material and its interaction with the aromatic ring, is this substituent an activator or deactivator? Briefly explain your answer and support your answer with structures b. (5.5pts) Draw all of the resonance contributors of the o-complexes that lead to each of the three possible products. c. (0.5p) Based on the structures drawn in...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
250 ChemActivity 29 Electrophilic Aromatic Substitution no ChemActivity 29 Part A: Electrophilic Aromatic Substitution (What products are formed when a strong electrophile is added to benzene?) Model 1: (review) Electrophilic Addition of HCI Rani o g cyclohexene carbocation intermediate Run 2 U X benzene This product carbocation intermediate DOES NOT Critical Thinking Questions 1 For Rxn I (above) draw curved arrows showing the mechanism of electrophilic addition of HCl. Include an appropriate carbocation intermediate in the box above. Figure 1:...
Question 3 1s 3 ORTHO Today we learned about adding a second group to a mono-substituted benzene ring. Any group on a benzene will affect the rate of the reaction (activated or deactivated relative to benzene) and the regioselectivity Where does the electrophile add? Ortho? Meta? Para? Some combination thereof? We found that EDGs (electron-donating groups) direct the electrophile to the ortho and para positions while EWGs (electron-withdrawing groups) direct the electrophile to the meta position. Now, it is time...
Using resonance structures as part of your answer, explain why Br in bromobenzene is: a. A mild ring deactivator b. An o-, p-director. [Note: It is not enough to use resonance structures from part "a" to "prove" part "b". One must show that o-, p-attack is faster, i.e. has lower Ea (AGa) by actually showing an electrophile, e.g. the generalized E+, attacking at the o-, m-& p-positions and, using Hammond's Principle, explain why the o-, p-attacks are favored.] Explain what...
please answer carefully, each question may have MULTIPLE options that are correct! Question 5 3 pts Which of the following bonds in the tertiary amine shown, CANNOT be formed via reductive amination? Select all that apply. (A). (B) N (C) ОА Ов Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. OH CF, Br NH2 А B с D E F А D B F ОЕ Question 7 3...