Which of the following substituents is a strong deactivator? A) -COOH B) -Cl C) -OCH3 D)...
Which of the following substituents is a strong deactivator?
A) -COOH
B) -Cl
C) -OCH3
D) -NO2
E) none of the above
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Which of the following substituents is a strong deactivator?
A) -COOH
B) -Cl
C) -OCH3
D)...
23) What is the following compound's systematic name? 23) CHE CH, CH CH,CHCH, A) 2-methyl-4-heptanone B)2-methyl-4-pentanone...
23) What is the following compound's systematic name? 23) CHE CH, CH CH,CHCH, A) 2-methyl-4-heptanone B)2-methyl-4-pentanone 2-methyl-4-hexanone D) 5-methyl-3-heptanone E) 5-methyl-3-hexanone 24) Which of the following is phenol? 24) CH2OH ОН I IV. op CH SO3H IT. III OCH A) B) IT D) IV E) V 25) 25) Which of the following substituents is a strong deactivator? A) -OCH3 B) -NO2 C)-COOH D) - E) none of the above
13. Which substituents are anti to each other? OCH3 HSH " Y CH2CH3 choco Br a....
13. Which substituents are anti to each other? OCH3 HSH " Y CH2CH3 choco Br a. OCH3 and H d. Hand CI b. Cl and CH2CH3 e. CH2CH3 and Br C. Brand SH
[6) Which of the following compound is a strong acid? COOH B. None of the above...
[6) Which of the following compound is a strong acid? COOH B. None of the above [7] Which of the following compound is a weak acid? D. None of the above and Binder do not dissolve in dichloromethane (CH.Cl) in the first step of isolation of Excedrin. A. Acetaminophen B. Aspirin C. Caffeine D. Binder and 19] The filtrate obtained in the first step of the Excedrin separation contains A. Acetaminophen and binder B. Aspirin and caffeine Caffeine and acetaminophen...
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can...
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the following lists, select the substituents that have the indicated property. The substituents are written as -XY, where X is the atom directly bound to the aromatic ring Activation of the ring towards...
Nitro group (-NO.) as a strong deactivator, is a me tivator is a meta-director in electrophilie...
Nitro group (-NO.) as a strong deactivator, is a me tivator is a meta-director in electrophilie substitution reactions. Why? A) Because it decreases electron density mostly on ortho and para positions, thus making meta positions better reactive sites, B) Because it deactivates ortho and para positions and activates the meta positions. c) Because all deactivators are meta-directors. D) Because its resonance effect competes against its inductive effect and the resonance effect increases the electron density on meta positions. E) All...
Identify the reagents used in the following synthesis 1. Cl Br он он b. он он d. OCH3 C. e. Identify the reagen...
Identify the reagents used in the following synthesis 1. Cl Br он он b. он он d. OCH3 C. e.
Identify the reagents used in the following synthesis 1. Cl Br он он b. он он d. OCH3 C. e.
given Which is more stable? Position A/ Position B (circle one) COOH COOH Which is more...
given
Which is more stable? Position A/ Position B (circle one) COOH COOH Which is more stable? Position A/ Position B (circle one) 9. Given the results of the previous problems, if an ELECTRON DONATING group is already attached to benzene, it is more stable to add the electrophile to the _position(s). Look at positions A and B in the previous problems. a. Ortho b. Meta C. Para d. Two of the above e. None of the above 10. If...
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can...
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the following lists, select the substituents that have the indicated property. The substituents are written as -XY, where X is the atom directly bound to the aromatic ring. Activation of the ring towards substitution. Withdrawal of electrons through...
1) Which of the following is an intermediate in the bromination of toluene? p) Ha BrH...
1) Which of the following is an intermediate in the bromination of toluene? p) Ha BrH 2 2) Under what reaction conditions would the electrophilic chlorination of aromatic compounds usually occur? A) Cl2, AlCl3 B) C12, CCl4 C) Cl2, H20 D) NaCl, H20 E) NaCI, CH3OH 3) 3) Which of the following is the strongest activating group in electrophilic aromatic substitution reactions? A) -CO2CH3 B)-NO2 C) -OCH3 D) -CH2CH3 E) -N(CH3)2 4) _ 4) In electrophilic aromatic substitution reactions the...
arrange the following substituents in decreasing order of ring activation for electrophilic aromatic substitution: -NHCOCH3, -CH3,...
arrange the following substituents in decreasing order of ring activation for electrophilic aromatic substitution: -NHCOCH3, -CH3, -OCH3, -OH, NO2, -H, Cl, NH2.
23) What is the following compound's systematic name? 23) CHE CH, CH CH,CHCH, A) 2-methyl-4-heptanone B)2-methyl-4-pentanone 2-methyl-4-hexanone D) 5-methyl-3-heptanone E) 5-methyl-3-hexanone 24) Which of the following is phenol? 24) CH2OH ОН I IV. op CH SO3H IT. III OCH A) B) IT D) IV E) V 25) 25) Which of the following substituents is a strong deactivator? A) -OCH3 B) -NO2 C)-COOH D) - E) none of the above
13. Which substituents are anti to each other? OCH3 HSH " Y CH2CH3 choco Br a. OCH3 and H d. Hand CI b. Cl and CH2CH3 e. CH2CH3 and Br C. Brand SH
[6) Which of the following compound is a strong acid? COOH B. None of the above [7] Which of the following compound is a weak acid? D. None of the above and Binder do not dissolve in dichloromethane (CH.Cl) in the first step of isolation of Excedrin. A. Acetaminophen B. Aspirin C. Caffeine D. Binder and 19] The filtrate obtained in the first step of the Excedrin separation contains A. Acetaminophen and binder B. Aspirin and caffeine Caffeine and acetaminophen...
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the following lists, select the substituents that have the indicated property. The substituents are written as -XY, where X is the atom directly bound to the aromatic ring Activation of the ring towards...
Nitro group (-NO.) as a strong deactivator, is a me tivator is a meta-director in electrophilie substitution reactions. Why? A) Because it decreases electron density mostly on ortho and para positions, thus making meta positions better reactive sites, B) Because it deactivates ortho and para positions and activates the meta positions. c) Because all deactivators are meta-directors. D) Because its resonance effect competes against its inductive effect and the resonance effect increases the electron density on meta positions. E) All...
Identify the reagents used in the following synthesis 1. Cl Br он он b. он он d. OCH3 C. e.
Identify the reagents used in the following synthesis 1. Cl Br он он b. он он d. OCH3 C. e.
given
Which is more stable? Position A/ Position B (circle one) COOH COOH Which is more stable? Position A/ Position B (circle one) 9. Given the results of the previous problems, if an ELECTRON DONATING group is already attached to benzene, it is more stable to add the electrophile to the _position(s). Look at positions A and B in the previous problems. a. Ortho b. Meta C. Para d. Two of the above e. None of the above 10. If...
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the following lists, select the substituents that have the indicated property. The substituents are written as -XY, where X is the atom directly bound to the aromatic ring. Activation of the ring towards substitution. Withdrawal of electrons through...
1) Which of the following is an intermediate in the bromination of toluene? p) Ha BrH 2 2) Under what reaction conditions would the electrophilic chlorination of aromatic compounds usually occur? A) Cl2, AlCl3 B) C12, CCl4 C) Cl2, H20 D) NaCl, H20 E) NaCI, CH3OH 3) 3) Which of the following is the strongest activating group in electrophilic aromatic substitution reactions? A) -CO2CH3 B)-NO2 C) -OCH3 D) -CH2CH3 E) -N(CH3)2 4) _ 4) In electrophilic aromatic substitution reactions the...
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