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(V) 10pts. When aniline (C6H3-NH2) reacts with bromonium ion (NO2. the nitro group can become bonded...
(V) 10pts. When aniline (C6H3-NH2) reacts with bromonium ion (NO2. the nitro group can become bonded to a carbon at one of the three possible positions: ortho, meta, and para to the -NH2 group in the benzene ring. Consider meta and ortho attack and draw RESONANCE STRUCTURES for the carbocations that result when NO2 undergoes electrophilic aromatic substitution to aniline. Then, on the basis of these resonance structures, explain whether the --NH2, group.is meta director, or ortho/para director. Show which...
Nitration of phenols is a classic example of an electrophilic aromatic substitution reaction. a) Why does...
Nitration of phenols is a classic example of an electrophilic aromatic substitution reaction. a) Why does the nitration of phenol (hydroxybenzene) proceed only in the ortho- and para-positions on the ring? b) Draw the resonance structures that highlight the ortho- and para-directing nature of hydroxy substituents. Make sure to include the structures that showcase the movement of the charges in the ring.
!!! If each compound undergoes electrophilic aromatic substitution, where should the substituent be added? *The choices...
!!! If each compound undergoes electrophilic aromatic substitution, where should the substituent be added? *The choices for each are either ortho/para position OR meta position.* Phenol? Benzaldehyde? Benzoic Acid? Bromobenzene? Nitrobenzene? Toluene?
There are 3 pictures, 18 exercises in total. Topics are Benzenes and their reactions No -I...
There are 3 pictures, 18 exercises in total. Topics are Benzenes
and their reactions
No -I ab 0 CH3 Br nooit 1. Aromatic molecules contain Tt electrons. a. 4n b. 4n+2 c. An odd number d. 4n+1 c. Zero Condition needed for benzene halogenation to occur a. NaC1, 1120 b. C12, H20 c. C12, AICI3 d. NaCl, CH3OH e. C12, CC14 3. In an electrophilic aromatic substitution, the hydroxyl group orients ortho-para because a, removes electronic density from the benzene...
1. please check what is wrong. Thank you! Determine the product formed when each compound is treated with...
1. please check what is wrong. Thank you!
Determine the product formed when each compound is treated with Br2 and FeBr3. Drag the atom labels to their appropriate positions. CN Atom labels H H Br Br2 A. FeBr Br H OH OH Br Br. Br2 FeBr3 H H Br Br H Br2 FeBr H1 H Reset T Rank the compounds in each group in order of decreasing reactivity in electrophilic aromatic substitution. CI Decreasing reactivity Rank the compounds in each...
Table 1: AM1 Energies of the carbocations formed from nitration of the named compound (kcal/mol) ...
Table 1: AM1 Energies of the carbocations formed from nitration of the named compound (kcal/mol) ortho meta para Toluene (S = CH3) 221.74 224.49 219.04 Phenol (S = OH) 179.10 193.32 177.44 Trifluorotoluene (S = CF3) 95.17 90.06 93.56 Methyl benzoate (S = CO2CH3) 160.00 159.34 159.34 Using the table answer the following questions. 1 a. The carbocation intermediates are good models of the transition states for the corresponding aromatic reactions. When looking at the transition state energy of two...
Synthesis of disubstituted benzenes involves two steps, each introducing one of the functional groups For the...
Synthesis of disubstituted benzenes involves two steps, each introducing one of the functional groups For the synthesis of p-chlorosulfonic acid, select the reagent for each step and draw the structure of the monosubstituted intermediate compound. Put the intermediate substituent in the same place that it is oberved in the product (i.e. either the top or the bottom of the benzene ring). Intermediate Step 1 Step 2 O C2, peroxide O Ch. FeCl3 O SOs, H2S04 O Cl2. peroxide O Cl2....
Add the following questions to the final report: a) Why does the carbomethoxy group directs the...
Add the following questions to the final report: a) Why does the carbomethoxy group directs the reaction to positions that are meta to it? b) Why the formation of dinitrobenzaote is substantially disfavored ? c) Would you expect small amounts of the ortho and para substituted product? How would you remove them if they are formed ? d) Why does water have a retarding effect on the nitration ? e) Explain why Benzene has lower reactivity in electrophilic addition reactions...
8. All of the C-C bonds of benzene are: a. the same length b. radical like...
8. All of the C-C bonds of benzene are: a. the same length b. radical like in nature c. easy to break homolytically b. polyalkylation d. None of the above c. casy to break hetcrolytically 9. A limitation of the Friedel-Crafts acylation is: a. carbocation rearrangement c. reaction fails with very strong deactivators 10. Generally, the reaction with benzene with a halogen needsa as a promoter. a. Lewis base to serve b. Lewis acid c. Bronsted base d. Bronsted acid...
4. Answer the following questions based on the electrophilic aromatic substitution reaction shown below. door a....
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...
(V) 10pts. When aniline (C6H3-NH2) reacts with bromonium ion (NO2. the nitro group can become bonded to a carbon at one of the three possible positions: ortho, meta, and para to the -NH2 group in the benzene ring. Consider meta and ortho attack and draw RESONANCE STRUCTURES for the carbocations that result when NO2 undergoes electrophilic aromatic substitution to aniline. Then, on the basis of these resonance structures, explain whether the --NH2, group.is meta director, or ortho/para director. Show which...
There are 3 pictures, 18 exercises in total. Topics are Benzenes
and their reactions
No -I ab 0 CH3 Br nooit 1. Aromatic molecules contain Tt electrons. a. 4n b. 4n+2 c. An odd number d. 4n+1 c. Zero Condition needed for benzene halogenation to occur a. NaC1, 1120 b. C12, H20 c. C12, AICI3 d. NaCl, CH3OH e. C12, CC14 3. In an electrophilic aromatic substitution, the hydroxyl group orients ortho-para because a, removes electronic density from the benzene...
1. please check what is wrong. Thank you!
Determine the product formed when each compound is treated with Br2 and FeBr3. Drag the atom labels to their appropriate positions. CN Atom labels H H Br Br2 A. FeBr Br H OH OH Br Br. Br2 FeBr3 H H Br Br H Br2 FeBr H1 H Reset T Rank the compounds in each group in order of decreasing reactivity in electrophilic aromatic substitution. CI Decreasing reactivity Rank the compounds in each...
Synthesis of disubstituted benzenes involves two steps, each introducing one of the functional groups For the synthesis of p-chlorosulfonic acid, select the reagent for each step and draw the structure of the monosubstituted intermediate compound. Put the intermediate substituent in the same place that it is oberved in the product (i.e. either the top or the bottom of the benzene ring). Intermediate Step 1 Step 2 O C2, peroxide O Ch. FeCl3 O SOs, H2S04 O Cl2. peroxide O Cl2....
Add the following questions to the final report: a) Why does the carbomethoxy group directs the reaction to positions that are meta to it? b) Why the formation of dinitrobenzaote is substantially disfavored ? c) Would you expect small amounts of the ortho and para substituted product? How would you remove them if they are formed ? d) Why does water have a retarding effect on the nitration ? e) Explain why Benzene has lower reactivity in electrophilic addition reactions...
8. All of the C-C bonds of benzene are: a. the same length b. radical like in nature c. easy to break homolytically b. polyalkylation d. None of the above c. casy to break hetcrolytically 9. A limitation of the Friedel-Crafts acylation is: a. carbocation rearrangement c. reaction fails with very strong deactivators 10. Generally, the reaction with benzene with a halogen needsa as a promoter. a. Lewis base to serve b. Lewis acid c. Bronsted base d. Bronsted acid...
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...
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