What is hyper-conjugation and how does it lead to alkyl groups ability to be ortho, para...
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What is hyper-conjugation and how does it lead to alkyl groups
ability to be ortho, para...
Which of the following groups are ortho, para-directing? A)CO2CH3 B) SCH3 18. D)CONH2 )SO3H
Which of the following groups are ortho, para-directing? A)CO2CH3 B) SCH3 18. D)CONH2 )SO3H
Categorize the groups attached to the ring in salicylamide as activators, deactivators, ortho/para directors, or meta directors. Predict the product(s) of the reaction .
Categorize the groups attached to the ring in salicylamide as activators, deactivators, ortho/para directors, or meta directors. Predict the product(s) of the reaction.4 (1,2).png4 (2,2).png
Label the following as activating (A) or deactivating (D), and then also as ortho/para directors (OP)...
Label the following as activating (A) or deactivating (D), and then also as ortho/para directors (OP) or meta directors (M). Write the answer below each group. N "Here with other ty A/D? = = = = OP/M? = f) Using resonance structures, explain why a nitro group is "meta-directing" (i.e. does the nitro group actually affect the meta positions?) g) As mentioned in class, the halogens are a bit anomalous as substituents on the aromatic ring: they are deactivating groups,...
Activating groups "speed up" electrophilic substitution of aromatics and deactivating groups "slow down" electrophilic substitution. 1....
Activating groups "speed up" electrophilic substitution of
aromatics and deactivating groups "slow down" electrophilic
substitution.
1. Ignoring halogens, what is different between the composition
of the ortho-para directors and the meta directors?
2. What causes the deactivating groups to "slow down" the
substitution? What may be used to speed up these reactions?
3. How does carbocation stabilization affect the orientation of
the products in each orientation?
Activating groups Deactivating groups ortho-, para- directors -hydroxyl (OH) -alkoxy (OR) -amino (NH2, NR)...
6-8 6. Which of the following alkyl-substituted aromatic compounds will be the least ortho directing? a....
6-8
6. Which of the following alkyl-substituted aromatic compounds will be the least ortho directing? a. b. C. d. 7. What major factors affect regioselectivity in electrophilic aromatic substitution reactions? a. Steric and inductive effects only b. Steric, statistical, and electronic effects (electron withdrawing electron donating) c. Statistical and electronic effects only d. Electronic effects only 8. Which of the following statements is always true regarding amino substituents (-NH, -NHR, and -NR.)? a. An additional resonance structure can be drawn...
Question 3 1s 3 ORTHO Today we learned about adding a second group to a mono-substituted...
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...
I understand that OH is a EDG so I expect a para/ ortho position but how...
I
understand that OH is a EDG so I expect a para/ ortho position but
how doni determine the major product and which sode of the ring it
will be on
Which of the following is the major product of the nitration reaction of compound 1 below? ÇO-OH HNO3 /H2SO4 ????? CO-OH СО-он со-он CO-OH NO2 ON CO-OH CO-OH ON CO-OH II (b) III (c) IV (e) III & IV (d) II & III If thiophene below reacts like 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...
if shown a tree! 40. Can you recognize mono- para- and poly-phyletic groups How have oxygen...
if shown a tree! 40. Can you recognize mono- para- and poly-phyletic groups How have oxygen levels varied over time, and what affects did that have on life? 2. You have a fossil with a fraction of 1ugh unstable parent to stable daughter isotope, with a does it belong to? half-life of 12 million years. How old is your fossil? Which era 43 Be able to complete this table Dominant taxonomic Era Time period Major physical conditions Nw taxonomic groupsBirds,...
1. Does a tax lead to a deadweight loss? Explain your answer in detail. 2. How...
1. Does a tax lead to a deadweight loss? Explain your answer in detail. 2. How does a tax impact consumer and producer surplus? 5. Describe how deadweight loss changes when demand is elastic and inelastic. 8. Describe how deadweight loss changes when supply is elastic and inelastic 10. Explain the difference between the benefits principle and the ability-to-pay principle.
Which of the following groups are ortho, para-directing? A)CO2CH3 B) SCH3 18. D)CONH2 )SO3H
Label the following as activating (A) or deactivating (D), and then also as ortho/para directors (OP) or meta directors (M). Write the answer below each group. N "Here with other ty A/D? = = = = OP/M? = f) Using resonance structures, explain why a nitro group is "meta-directing" (i.e. does the nitro group actually affect the meta positions?) g) As mentioned in class, the halogens are a bit anomalous as substituents on the aromatic ring: they are deactivating groups,...
Activating groups "speed up" electrophilic substitution of
aromatics and deactivating groups "slow down" electrophilic
substitution.
1. Ignoring halogens, what is different between the composition
of the ortho-para directors and the meta directors?
2. What causes the deactivating groups to "slow down" the
substitution? What may be used to speed up these reactions?
3. How does carbocation stabilization affect the orientation of
the products in each orientation?
Activating groups Deactivating groups ortho-, para- directors -hydroxyl (OH) -alkoxy (OR) -amino (NH2, NR)...
6-8
6. Which of the following alkyl-substituted aromatic compounds will be the least ortho directing? a. b. C. d. 7. What major factors affect regioselectivity in electrophilic aromatic substitution reactions? a. Steric and inductive effects only b. Steric, statistical, and electronic effects (electron withdrawing electron donating) c. Statistical and electronic effects only d. Electronic effects only 8. Which of the following statements is always true regarding amino substituents (-NH, -NHR, and -NR.)? a. An additional resonance structure can be drawn...
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...
I
understand that OH is a EDG so I expect a para/ ortho position but
how doni determine the major product and which sode of the ring it
will be on
Which of the following is the major product of the nitration reaction of compound 1 below? ÇO-OH HNO3 /H2SO4 ????? CO-OH СО-он со-он CO-OH NO2 ON CO-OH CO-OH ON CO-OH II (b) III (c) IV (e) III & IV (d) II & III If thiophene below reacts like 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...
if shown a tree! 40. Can you recognize mono- para- and poly-phyletic groups How have oxygen levels varied over time, and what affects did that have on life? 2. You have a fossil with a fraction of 1ugh unstable parent to stable daughter isotope, with a does it belong to? half-life of 12 million years. How old is your fossil? Which era 43 Be able to complete this table Dominant taxonomic Era Time period Major physical conditions Nw taxonomic groupsBirds,...
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