Homework Answers
Hence we get Ortho(A) and para
(B) product .
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(c) Predict the products A + B. Outline the logic of the predictions in terms of...
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.
to form Which of the following possible Birch reduction products would not be expected CH3 CH3...
to form Which of the following possible Birch reduction products would not be expected CH3 CH3 0 CH3 A. B. C. Which of the following substrates would most likely undergo a successful nucleophilic aromatic substitution reaction with diethylamine? NO2 NO 2 NO 2 A. B. C. D. Which of the following resonance structures does not depict stabilization of the negative charge in the Meisenheimer complex? 0 A. The nitro group has which of the following effects in electrophilic aromatic substitution?...
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. 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...
4) A) Explain the regiochemistry of the following bromination using key resonance structures (there should be...
4) A) Explain the regiochemistry of the following bromination using key resonance structures (there should be three) and predict the final product. Hint: Drawing these resonance structures is key to tell you if this substituent will direct bromination ortho/para or meta (3 polnts for the correct product, 4 polnts for the resonance structures, 7 points total). Brz FeBr, B) Predict the products (3 points each). b) OCH, a) HNO, H,SO AIC Br 1) S c) (p P. CH PHPh "Chem...
substituents can be rationalized in terms of inductive and to your knowledge of these effects explain...
substituents can be rationalized in terms of inductive and to your knowledge of these effects explain the following observat igma (o) constants associated with meta and para terms of inductive and resonance influences. Using The o constant for the nitro group (-NO2) is more positive than in the meta position (cm=0.71). oup (-NO2) is more positive (p = 0.78) in the para position [3 marks] d. Predict the signs (positive or following reactions and briefly justify your answer by illust...
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the...
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...
Predict the major products of the following reactions, and propose mechanisms to support your predictions. Start at the...
Predict the major products of the following reactions, and
propose mechanisms to support your predictions. Start at the
propagation stage.
1-methylcyclopentene + HBr + CH-0-0-0-0- Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Add charges where needed. Electron flow arrows should start on the electron(s) of an atom ar a bond and should end on an atom, bond, or location where a new bond should be created....
3 Predict the products for the following reactions ( 3 pts each): NO Ci a. AlCh...
3 Predict the products for the following reactions ( 3 pts each): NO Ci a. AlCh но..//> HNOg MgBr ether C. H3O+ Br 1 H2N NH2 DMF d) 2. NaOH, H20 4. If you were to nitrate chlorobenzene what would be the product or products that would be formed. Is nitration of chlorobenzene regioselective why or why not. Please explain your answer showing resonance structures. (5 pts)
1) Consider the acid-base reaction below. A) Predict the products and show the arrow.pushing mechanism and...
1) Consider the acid-base reaction below. A) Predict the products and show the arrow.pushing mechanism and all of the resonance structures for any resonance-stabilized products. B) Estimate K for this reaction. + Na o
to form Which of the following possible Birch reduction products would not be expected CH3 CH3 0 CH3 A. B. C. Which of the following substrates would most likely undergo a successful nucleophilic aromatic substitution reaction with diethylamine? NO2 NO 2 NO 2 A. B. C. D. Which of the following resonance structures does not depict stabilization of the negative charge in the Meisenheimer complex? 0 A. The nitro group has which of the following effects in electrophilic aromatic substitution?...
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. 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...
4) A) Explain the regiochemistry of the following bromination using key resonance structures (there should be three) and predict the final product. Hint: Drawing these resonance structures is key to tell you if this substituent will direct bromination ortho/para or meta (3 polnts for the correct product, 4 polnts for the resonance structures, 7 points total). Brz FeBr, B) Predict the products (3 points each). b) OCH, a) HNO, H,SO AIC Br 1) S c) (p P. CH PHPh "Chem...
substituents can be rationalized in terms of inductive and to your knowledge of these effects explain the following observat igma (o) constants associated with meta and para terms of inductive and resonance influences. Using The o constant for the nitro group (-NO2) is more positive than in the meta position (cm=0.71). oup (-NO2) is more positive (p = 0.78) in the para position [3 marks] d. Predict the signs (positive or following reactions and briefly justify your answer by illust...
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...
Predict the major products of the following reactions, and
propose mechanisms to support your predictions. Start at the
propagation stage.
1-methylcyclopentene + HBr + CH-0-0-0-0- Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Add charges where needed. Electron flow arrows should start on the electron(s) of an atom ar a bond and should end on an atom, bond, or location where a new bond should be created....
3 Predict the products for the following reactions ( 3 pts each): NO Ci a. AlCh но..//> HNOg MgBr ether C. H3O+ Br 1 H2N NH2 DMF d) 2. NaOH, H20 4. If you were to nitrate chlorobenzene what would be the product or products that would be formed. Is nitration of chlorobenzene regioselective why or why not. Please explain your answer showing resonance structures. (5 pts)
1) Consider the acid-base reaction below. A) Predict the products and show the arrow.pushing mechanism and all of the resonance structures for any resonance-stabilized products. B) Estimate K for this reaction. + Na o
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