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director in an EAS reaction . Use the structures Of all of its resonance contributors to...
Objectives - Section 1 • Identify a substituent as an ortho para director or a meta director, Draw the resonance st...
Objectives - Section 1 • Identify a substituent as an ortho para director or a meta director, Draw the resonance structure that explains the relative directing ability of a specific substituent. Classify a substituent as an activating or a deactivating group. Explain why the halogens are ortho/para directors but are deactivators. • 1. Draw the mechanism of the reaction below and use resonance structures of the arenium ion intermediate to explain why the starting material is an ortho/para director
Using resonance structures and a brief explanation, explain why phenol (C6H5OH) is an ortho-para director (25...
Using resonance structures and a brief explanation, explain why phenol (C6H5OH) is an ortho-para director (25 pts).
2. Using resonance contributors for the intermediate carbocation, explain why a phenyl group is an ortho-para...
2. Using resonance contributors for the intermediate carbocation, explain why a phenyl group is an ortho-para director. FeCl3 + Cl2
3. Draw all possible resonance structures for aniline. Relate the resonance structures to why it is...
3. Draw all possible resonance structures for aniline. Relate the resonance structures to why it is an ortho/para director. 3. Drawhy it is нони 19 Pa
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...
#1. Using curved arrows to symbolize electrons, write a complete reaction mechanism for the bromination of...
#1. Using curved arrows to symbolize electrons, write a complete reaction mechanism for the bromination of acetanilide to create the product. Include the resonance structures for any charged, delocalized intermediates that are involved. #2. Why does performing the experiment at 0 degrees Celsius help you identify some of the relative rates of reactivity? #3. Explain why a methyl group is a mildly activating group while a methoxy group is strong activating. #4. Explain why-- NH2 act as an activator and--...
For each of the following anions, draw all possible resonance contributors. Show the conversion between resonance...
For each of the following anions, draw all possible resonance contributors. Show the conversion between resonance contributors by including curved arrow formalism. 1. O2N Based on the resonance structures you drew in question 1, which compound (A or B) would you expect to be the more stable anion? Briefly explain your choice. 2. Looking at the compound you chose in part 2, which of its resonance contributors is the major contributor? Briefly explain. 3.
Methoxy benzene (anisole) reacts with a mixture of FeBr3 and Br2 and the major products obtained...
Methoxy benzene (anisole) reacts with a mixture of FeBr3 and Br2 and the major products obtained are ortho- and para-substituted. Draw the 3 major and minor products of the reaction and use resonance structures of the carbocation intermediate to explain why ortho and para substitution occur in preference to the meta-substitution.
• Explain why the halogens are orthopars dilectons but are deactivators 1. Draw the mechanism of...
• Explain why the halogens are orthopars dilectons but are deactivators 1. Draw the mechanism of the reaction below and use resonance structures of the arenium ion intermediate to explain why the starting material is an ortho/para director
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,...
Objectives - Section 1 • Identify a substituent as an ortho para director or a meta director, Draw the resonance structure that explains the relative directing ability of a specific substituent. Classify a substituent as an activating or a deactivating group. Explain why the halogens are ortho/para directors but are deactivators. • 1. Draw the mechanism of the reaction below and use resonance structures of the arenium ion intermediate to explain why the starting material is an ortho/para director
2. Using resonance contributors for the intermediate carbocation, explain why a phenyl group is an ortho-para director. FeCl3 + Cl2
3. Draw all possible resonance structures for aniline. Relate the resonance structures to why it is an ortho/para director. 3. Drawhy it is нони 19 Pa
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...
For each of the following anions, draw all possible resonance contributors. Show the conversion between resonance contributors by including curved arrow formalism. 1. O2N Based on the resonance structures you drew in question 1, which compound (A or B) would you expect to be the more stable anion? Briefly explain your choice. 2. Looking at the compound you chose in part 2, which of its resonance contributors is the major contributor? Briefly explain. 3.
• Explain why the halogens are orthopars dilectons but are deactivators 1. Draw the mechanism of the reaction below and use resonance structures of the arenium ion intermediate to explain why the starting material is an ortho/para director
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,...
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